{"title":"R2500","description":null,"products":[{"product_id":"1987-1988-gmc-r2500-4-8l-250-320amp-high-output-alternator","title":"1987-1988 GMC R2500 L6 4.8L 12si High Output Alternator","description":"\u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis is a direct fit high-output alternator for the 1987-1988 GMC R2500 4.8L. Being a direct fit, this alternator fits directly into your stock alternator location.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePlug:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis high-output alternator comes with a separate adaptor plug. One side will plug directly into the aftermarket high-output alternator, and the other side will plug into the factory plug.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003e\u003cmeta charset=\"utf-8\"\u003eNOTE: If you require charging at a certain voltage setpoint, we offer a selection of different voltage regulators that you will need to purchase with the alternator for it to be installed. \u003ca href=\"https:\/\/js-alternators.com\/collections\/regulators\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eView our Regulator Options Here. \u003c\/strong\u003e\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePulley:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis alternator also comes with a smaller pulley, which causes it to spin faster than a larger pulley. This can help the alternator produce its maximum output. With a smaller pulley, it is required to install a 1\/2\" - 1\" shorter belt.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/need-help-finding-shorter-belt-for-your-jsalternators-high-output-alternator\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cspan underline=\"\" text-decoration:=\"\"\u003e\u003cstrong\u003eSee this Blog Article for assistance in finding the correct shorter belt.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eBig 3 Wiring:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eWhen Upgrading to a High-Output Alternator, it is required to upgrade your wiring with the \u003ca href=\"https:\/\/js-alternators.com\/products\/big-3-wiring-upgrade-kits?_pos=1\u0026amp;_psq=big+3\u0026amp;_ss=e\u0026amp;_v=1.0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eBig 3 Wiring Upgrade Kit\u003c\/a\u003e. It is recommended to use 1\/0 100% copper wires for the upgrade. Our Big 3 Wiring Upgrade Kit is 10% off with a purchase of a JS Alternator; use code \u003cstrong\u003eBIG3DISCOUNT\u003c\/strong\u003e at checkout.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003ca href=\"\" https:\u003e\u003cem\u003eLearn Why The Big 3 Wiring Upgrade Kit is Required for All High Output Alternators\u003c\/em\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"JS Alternators","offers":[{"title":"250 amp alternator \/ V-Belt Pulley","offer_id":42949018452144,"sku":"7272-9-R2500-1987-1988-4.8L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ V-Belt Pulley","offer_id":42949018484912,"sku":"7272-9-R2500-1987-1988-4.8L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ Double V-Belt Pulley","offer_id":42949018517680,"sku":"7272-9-R2500-1987-1988-4.8L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949018550448,"sku":"7272-9-R2500-1987-1988-4.8L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ Double V-Belt Pulley","offer_id":42949018583216,"sku":"7272-9-R2500-1987-1988-4.8L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949018615984,"sku":"7272-9-R2500-1987-1988-4.8L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/4866\/6800\/files\/1-12si-v1-angle_d977bf78-37a5-4960-9975-7a3795e9be48.png?v=1700249257"},{"product_id":"1987-1989-gmc-r2500-5-7l-250-320amp-high-output-alternator","title":"1987-1989 GMC R2500 V8 5.7L 12si High Output Alternator","description":"\u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis is a direct fit high-output alternator for the 1987-1989 GMC R2500 5.7L. Being a direct fit, this alternator fits directly into your stock alternator location.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePlug:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis high-output alternator comes with a separate adaptor plug. One side will plug directly into the aftermarket high-output alternator, and the other side will plug into the factory plug.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003e\u003cmeta charset=\"utf-8\"\u003eNOTE: If you require charging at a certain voltage setpoint, we offer a selection of different voltage regulators that you will need to purchase with the alternator for it to be installed. \u003ca href=\"https:\/\/js-alternators.com\/collections\/regulators\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eView our Regulator Options Here. \u003c\/strong\u003e\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePulley:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis alternator also comes with a smaller pulley, which causes it to spin faster than a larger pulley. This can help the alternator produce its maximum output. With a smaller pulley, it is required to install a 1\/2\" - 1\" shorter belt.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/need-help-finding-shorter-belt-for-your-jsalternators-high-output-alternator\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cspan underline=\"\" text-decoration:=\"\"\u003e\u003cstrong\u003eSee this Blog Article for assistance in finding the correct shorter belt.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eBig 3 Wiring:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eWhen Upgrading to a High-Output Alternator, it is required to upgrade your wiring with the \u003ca href=\"https:\/\/js-alternators.com\/products\/big-3-wiring-upgrade-kits?_pos=1\u0026amp;_psq=big+3\u0026amp;_ss=e\u0026amp;_v=1.0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eBig 3 Wiring Upgrade Kit\u003c\/a\u003e. It is recommended to use 1\/0 100% copper wires for the upgrade. Our Big 3 Wiring Upgrade Kit is 10% off with a purchase of a JS Alternator; use code \u003cstrong\u003eBIG3DISCOUNT\u003c\/strong\u003e at checkout.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003ca href=\"\" https:\u003e\u003cem\u003eLearn Why The Big 3 Wiring Upgrade Kit is Required for All High Output Alternators\u003c\/em\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"JS Alternators","offers":[{"title":"250 amp alternator \/ V-Belt Pulley","offer_id":42949020287152,"sku":"7294-3-R2500-1987-1989-5.7L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ V-Belt Pulley","offer_id":42949020319920,"sku":"7294-3-R2500-1987-1989-5.7L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ Double V-Belt Pulley","offer_id":42949020352688,"sku":"7294-3-R2500-1987-1989-5.7L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949020385456,"sku":"7294-3-R2500-1987-1989-5.7L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ Double V-Belt Pulley","offer_id":42949020418224,"sku":"7294-3-R2500-1987-1989-5.7L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949020450992,"sku":"7294-3-R2500-1987-1989-5.7L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/4866\/6800\/files\/1-12si-v1-angle_ab3a2f6a-a575-46de-98f3-20642ad2f7a0.png?v=1700249294"},{"product_id":"1987-1989-gmc-r2500-6-2l-250-320amp-high-output-alternator","title":"1987-1989 GMC R2500 V8 6.2L 12si High Output Alternator","description":"\u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis is a direct fit high-output alternator for the 1987-1989 GMC R2500 6.2L. Being a direct fit, this alternator fits directly into your stock alternator location.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePlug:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis high-output alternator comes with a 14.8 Volt GM Style Internal Regulator with one wire connection. This alternator is not plug-and-play and must be wired with the one wire connection.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003e\u003cmeta charset=\"utf-8\"\u003eNOTE: If you require charging at a certain voltage setpoint, we offer a selection of different voltage regulators that you will need to purchase with the alternator for it to be installed. \u003ca href=\"https:\/\/js-alternators.com\/collections\/regulators\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eView our Regulator Options Here. \u003c\/strong\u003e\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePulley:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis alternator also comes with a smaller pulley, which causes it to spin faster than a larger pulley. This can help the alternator produce its maximum output. With a smaller pulley, it is required to install a 1\/2\" - 1\" shorter belt.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/need-help-finding-shorter-belt-for-your-jsalternators-high-output-alternator\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cspan underline=\"\" text-decoration:=\"\"\u003e\u003cstrong\u003eSee this Blog Article for assistance in finding the correct shorter belt.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eBig 3 Wiring:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eWhen Upgrading to a High-Output Alternator, it is required to upgrade your wiring with the \u003ca href=\"https:\/\/js-alternators.com\/products\/big-3-wiring-upgrade-kits?_pos=1\u0026amp;_psq=big+3\u0026amp;_ss=e\u0026amp;_v=1.0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eBig 3 Wiring Upgrade Kit\u003c\/a\u003e. It is recommended to use 1\/0 100% copper wires for the upgrade. Our Big 3 Wiring Upgrade Kit is 10% off with a purchase of a JS Alternator; use code \u003cstrong\u003eBIG3DISCOUNT\u003c\/strong\u003e at checkout.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/big-3-wiring-upgrade-kits\"\u003e\u003cem\u003eLearn Why The Big 3 Wiring Upgrade Kit is Required for All High Output Alternators\u003c\/em\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"JS Alternators","offers":[{"title":"250 amp alternator \/ V-Belt Pulley","offer_id":42949020647600,"sku":"7272-12-R2500-1987-1989-6.2L-250-6003L","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ V-Belt Pulley","offer_id":42949020680368,"sku":"7272-12-R2500-1987-1989-6.2L-320-6003L","price":449.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ Double V-Belt Pulley","offer_id":42949020713136,"sku":"7272-12-R2500-1987-1989-6.2L-250-6003L","price":399.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949020745904,"sku":"7272-12-R2500-1987-1989-6.2L-250-6003L","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ Double V-Belt Pulley","offer_id":42949020778672,"sku":"7272-12-R2500-1987-1989-6.2L-320-6003L","price":449.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949020811440,"sku":"7272-12-R2500-1987-1989-6.2L-320-6003L","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/4866\/6800\/files\/1-12si-v1-angle_a437ea8b-2e25-474f-a203-5728cc665daf.png?v=1700249302"},{"product_id":"1987-gmc-r2500-4-3l-12si-250-320amp-high-output-alternator","title":"1987 GMC R2500 V6 4.3L 12si High Output Alternator","description":"\u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis is a direct fit high-output alternator for the 1987 GMC R2500 4.3L. Being a direct fit, this alternator fits directly into your stock alternator location.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePlug:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis high-output alternator comes with a separate adaptor plug. One side will plug directly into the aftermarket high-output alternator, and the other side will plug into the factory plug.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003e\u003cmeta charset=\"utf-8\"\u003eNOTE: If you require charging at a certain voltage setpoint, we offer a selection of different voltage regulators that you will need to purchase with the alternator for it to be installed. \u003ca href=\"https:\/\/js-alternators.com\/collections\/regulators\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eView our Regulator Options Here. \u003c\/strong\u003e\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePulley:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis alternator also comes with a smaller pulley, which causes it to spin faster than a larger pulley. This can help the alternator produce its maximum output. With a smaller pulley, it is required to install a 1\/2\" - 1\" shorter belt.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/need-help-finding-shorter-belt-for-your-jsalternators-high-output-alternator\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cspan underline=\"\" text-decoration:=\"\"\u003e\u003cstrong\u003eSee this Blog Article for assistance in finding the correct shorter belt.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eBig 3 Wiring:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eWhen Upgrading to a High-Output Alternator, it is required to upgrade your wiring with the \u003ca href=\"https:\/\/js-alternators.com\/products\/big-3-wiring-upgrade-kits?_pos=1\u0026amp;_psq=big+3\u0026amp;_ss=e\u0026amp;_v=1.0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eBig 3 Wiring Upgrade Kit\u003c\/a\u003e. It is recommended to use 1\/0 100% copper wires for the upgrade. Our Big 3 Wiring Upgrade Kit is 10% off with a purchase of a JS Alternator; use code \u003cstrong\u003eBIG3DISCOUNT\u003c\/strong\u003e at checkout.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003ca href=\"\" https:\u003e\u003cem\u003eLearn Why The Big 3 Wiring Upgrade Kit is Required for All High Output Alternators\u003c\/em\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"JS Alternators","offers":[{"title":"250 amp alternator \/ V-Belt Pulley","offer_id":42949034803376,"sku":"7294-12-R2500-1987-4.3L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ V-Belt Pulley","offer_id":42949034836144,"sku":"7294-12-R2500-1987-4.3L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ Double V-Belt Pulley","offer_id":42949034868912,"sku":"7294-12-R2500-1987-4.3L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949034901680,"sku":"7294-12-R2500-1987-4.3L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ Double V-Belt Pulley","offer_id":42949034934448,"sku":"7294-12-R2500-1987-4.3L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949034967216,"sku":"7294-12-R2500-1987-4.3L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/4866\/6800\/files\/1-12si-v1-angle_91b1f20f-b970-4623-a2f4-e3402a2a373e.png?v=1700249523"},{"product_id":"1987-gmc-r2500-4-3l-cs130-250-320amp-high-output-alternator","title":"1987 GMC R2500 V6 4.3L cs130 High Output Alternator","description":"\u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis is a direct fit high-output alternator for the 1987 GMC R2500 4.3L. Being a direct fit, this alternator fits directly into your stock alternator location.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePlug:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis high-output alternator comes with a 14.8 Volt GM Style Internal Regulator with one wire connection. This alternator is not plug-and-play and must be wired with the one wire connection.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003e\u003cmeta charset=\"utf-8\"\u003eNOTE: If you require charging at a certain voltage setpoint, we offer a selection of different voltage regulators that you will need to purchase with the alternator for it to be installed. \u003ca href=\"https:\/\/js-alternators.com\/collections\/regulators\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eView our Regulator Options Here. \u003c\/strong\u003e\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePulley:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis alternator also comes with a smaller pulley, which causes it to spin faster than a larger pulley. This can help the alternator produce its maximum output. With a smaller pulley, it is required to install a 1\/2\" - 1\" shorter belt.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/need-help-finding-shorter-belt-for-your-jsalternators-high-output-alternator\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cspan underline=\"\" text-decoration:=\"\"\u003e\u003cstrong\u003eSee this Blog Article for assistance in finding the correct shorter belt.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eBig 3 Wiring:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eWhen Upgrading to a High-Output Alternator, it is required to upgrade your wiring with the \u003ca href=\"https:\/\/js-alternators.com\/products\/big-3-wiring-upgrade-kits?_pos=1\u0026amp;_psq=big+3\u0026amp;_ss=e\u0026amp;_v=1.0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eBig 3 Wiring Upgrade Kit\u003c\/a\u003e. It is recommended to use 1\/0 100% copper wires for the upgrade. Our Big 3 Wiring Upgrade Kit is 10% off with a purchase of a JS Alternator; use code \u003cstrong\u003eBIG3DISCOUNT\u003c\/strong\u003e at checkout.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/big-3-wiring-upgrade-kits\"\u003e\u003cem\u003eLearn Why The Big 3 Wiring Upgrade Kit is Required for All High Output Alternators\u003c\/em\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"JS Alternators","offers":[{"title":"250 amp alternator \/ 4-Rib Serpentine Pulley","offer_id":42949035458736,"sku":"7861-11-R2500-1987-4.3L-250-6003L","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ 4-Rib Serpentine Pulley","offer_id":42949035491504,"sku":"7861-11-R2500-1987-4.3L-320-6003L","price":449.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ 5-Rib Serpentine Pulley","offer_id":42949035557040,"sku":"7861-11-R2500-1987-4.3L-250-6003L","price":399.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949035622576,"sku":"7861-11-R2500-1987-4.3L-250-6003L","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ 5-Rib Serpentine Pulley","offer_id":42949035688112,"sku":"7861-11-R2500-1987-4.3L-320-6003L","price":449.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949035720880,"sku":"7861-11-R2500-1987-4.3L-320-6003L","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/4866\/6800\/files\/1-cs130-angle_a082ac82-c983-4ab9-a6f4-5d30019c5cb6.png?v=1700249529"},{"product_id":"1987-gmc-r2500-5-0l-12si-250-320amp-high-output-alternator","title":"1987 GMC R2500 V8 5.0L 12si High Output Alternator","description":"\u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis is a direct fit high-output alternator for the 1987 GMC R2500 5.0L. Being a direct fit, this alternator fits directly into your stock alternator location.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePlug:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis high-output alternator comes with a separate adaptor plug. One side will plug directly into the aftermarket high-output alternator, and the other side will plug into the factory plug.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003e\u003cmeta charset=\"utf-8\"\u003eNOTE: If you require charging at a certain voltage setpoint, we offer a selection of different voltage regulators that you will need to purchase with the alternator for it to be installed. \u003ca href=\"https:\/\/js-alternators.com\/collections\/regulators\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eView our Regulator Options Here. \u003c\/strong\u003e\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePulley:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis alternator also comes with a smaller pulley, which causes it to spin faster than a larger pulley. This can help the alternator produce its maximum output. With a smaller pulley, it is required to install a 1\/2\" - 1\" shorter belt.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/need-help-finding-shorter-belt-for-your-jsalternators-high-output-alternator\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cspan underline=\"\" text-decoration:=\"\"\u003e\u003cstrong\u003eSee this Blog Article for assistance in finding the correct shorter belt.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eBig 3 Wiring:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eWhen Upgrading to a High-Output Alternator, it is required to upgrade your wiring with the \u003ca href=\"https:\/\/js-alternators.com\/products\/big-3-wiring-upgrade-kits?_pos=1\u0026amp;_psq=big+3\u0026amp;_ss=e\u0026amp;_v=1.0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eBig 3 Wiring Upgrade Kit\u003c\/a\u003e. It is recommended to use 1\/0 100% copper wires for the upgrade. Our Big 3 Wiring Upgrade Kit is 10% off with a purchase of a JS Alternator; use code \u003cstrong\u003eBIG3DISCOUNT\u003c\/strong\u003e at checkout.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003ca href=\"\" https:\u003e\u003cem\u003eLearn Why The Big 3 Wiring Upgrade Kit is Required for All High Output Alternators\u003c\/em\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"JS Alternators","offers":[{"title":"250 amp alternator \/ V-Belt Pulley","offer_id":42949037031600,"sku":"7294-3-R2500-1987-5.0L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ V-Belt Pulley","offer_id":42949037064368,"sku":"7294-3-R2500-1987-5.0L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ Double V-Belt Pulley","offer_id":42949037097136,"sku":"7294-3-R2500-1987-5.0L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949037129904,"sku":"7294-3-R2500-1987-5.0L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ Double V-Belt Pulley","offer_id":42949037162672,"sku":"7294-3-R2500-1987-5.0L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949037195440,"sku":"7294-3-R2500-1987-5.0L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/4866\/6800\/files\/1-12si-v1-angle_8a0689be-fbc3-4521-9861-8287d4bc1982.png?v=1700249536"},{"product_id":"1987-gmc-r2500-5-0l-cs130-250-320amp-high-output-alternator","title":"1987 GMC R2500 V8 5.0L cs130 High Output Alternator","description":"\u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis is a direct fit high-output alternator for the 1987 GMC R2500 5.0L. Being a direct fit, this alternator fits directly into your stock alternator location.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePlug:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis high-output alternator comes with a 14.8 Volt GM Style Internal Regulator with one wire connection. This alternator is not plug-and-play and must be wired with the one wire connection.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003e\u003cmeta charset=\"utf-8\"\u003eNOTE: If you require charging at a certain voltage setpoint, we offer a selection of different voltage regulators that you will need to purchase with the alternator for it to be installed. \u003ca href=\"https:\/\/js-alternators.com\/collections\/regulators\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eView our Regulator Options Here. \u003c\/strong\u003e\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePulley:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis alternator also comes with a smaller pulley, which causes it to spin faster than a larger pulley. This can help the alternator produce its maximum output. With a smaller pulley, it is required to install a 1\/2\" - 1\" shorter belt.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/need-help-finding-shorter-belt-for-your-jsalternators-high-output-alternator\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cspan underline=\"\" text-decoration:=\"\"\u003e\u003cstrong\u003eSee this Blog Article for assistance in finding the correct shorter belt.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eBig 3 Wiring:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eWhen Upgrading to a High-Output Alternator, it is required to upgrade your wiring with the \u003ca href=\"https:\/\/js-alternators.com\/products\/big-3-wiring-upgrade-kits?_pos=1\u0026amp;_psq=big+3\u0026amp;_ss=e\u0026amp;_v=1.0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eBig 3 Wiring Upgrade Kit\u003c\/a\u003e. It is recommended to use 1\/0 100% copper wires for the upgrade. Our Big 3 Wiring Upgrade Kit is 10% off with a purchase of a JS Alternator; use code \u003cstrong\u003eBIG3DISCOUNT\u003c\/strong\u003e at checkout.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/big-3-wiring-upgrade-kits\"\u003e\u003cem\u003eLearn Why The Big 3 Wiring Upgrade Kit is Required for All High Output Alternators\u003c\/em\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"JS Alternators","offers":[{"title":"250 amp alternator \/ 4-Rib Serpentine Pulley","offer_id":42949037621424,"sku":"7861-11-R2500-1987-5.0L-250-6003L","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ 4-Rib Serpentine Pulley","offer_id":42949037654192,"sku":"7861-11-R2500-1987-5.0L-320-6003L","price":449.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ 5-Rib Serpentine Pulley","offer_id":42949037686960,"sku":"7861-11-R2500-1987-5.0L-250-6003L","price":399.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949037719728,"sku":"7861-11-R2500-1987-5.0L-250-6003L","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ 5-Rib Serpentine Pulley","offer_id":42949037752496,"sku":"7861-11-R2500-1987-5.0L-320-6003L","price":449.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949037785264,"sku":"7861-11-R2500-1987-5.0L-320-6003L","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/4866\/6800\/files\/1-cs130-angle_412c39cc-1a48-48a7-8346-3e34b3ca8714.png?v=1700249541"},{"product_id":"1988-1989-gmc-r2500-7-4l-250-320amp-high-output-alternator","title":"1988-1989 GMC R2500 V8 7.4L 12si High Output Alternator","description":"\u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis is a direct fit high-output alternator for the 1988-1989 GMC R2500 7.4L. Being a direct fit, this alternator fits directly into your stock alternator location.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePlug:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis high-output alternator comes with a separate adaptor plug. One side will plug directly into the aftermarket high-output alternator, and the other side will plug into the factory plug.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003e\u003cmeta charset=\"utf-8\"\u003eNOTE: If you require charging at a certain voltage setpoint, we offer a selection of different voltage regulators that you will need to purchase with the alternator for it to be installed. \u003ca href=\"https:\/\/js-alternators.com\/collections\/regulators\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eView our Regulator Options Here. \u003c\/strong\u003e\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePulley:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis alternator also comes with a smaller pulley, which causes it to spin faster than a larger pulley. This can help the alternator produce its maximum output. With a smaller pulley, it is required to install a 1\/2\" - 1\" shorter belt.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/need-help-finding-shorter-belt-for-your-jsalternators-high-output-alternator\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cspan underline=\"\" text-decoration:=\"\"\u003e\u003cstrong\u003eSee this Blog Article for assistance in finding the correct shorter belt.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eBig 3 Wiring:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eWhen Upgrading to a High-Output Alternator, it is required to upgrade your wiring with the \u003ca href=\"https:\/\/js-alternators.com\/products\/big-3-wiring-upgrade-kits?_pos=1\u0026amp;_psq=big+3\u0026amp;_ss=e\u0026amp;_v=1.0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eBig 3 Wiring Upgrade Kit\u003c\/a\u003e. It is recommended to use 1\/0 100% copper wires for the upgrade. Our Big 3 Wiring Upgrade Kit is 10% off with a purchase of a JS Alternator; use code \u003cstrong\u003eBIG3DISCOUNT\u003c\/strong\u003e at checkout.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003ca href=\"\" https:\u003e\u003cem\u003eLearn Why The Big 3 Wiring Upgrade Kit is Required for All High Output Alternators\u003c\/em\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"JS Alternators","offers":[{"title":"250 amp alternator \/ V-Belt Pulley","offer_id":42949042897072,"sku":"7294-12-R2500-1988-1989-7.4L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ V-Belt Pulley","offer_id":42949042929840,"sku":"7294-12-R2500-1988-1989-7.4L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ Double V-Belt Pulley","offer_id":42949042962608,"sku":"7294-12-R2500-1988-1989-7.4L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949042995376,"sku":"7294-12-R2500-1988-1989-7.4L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ Double V-Belt Pulley","offer_id":42949043028144,"sku":"7294-12-R2500-1988-1989-7.4L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949043060912,"sku":"7294-12-R2500-1988-1989-7.4L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/4866\/6800\/files\/1-12si-v1-angle_4d2242a8-1d5e-49a1-9862-82921370e18c.png?v=1700249630"},{"product_id":"1989-gmc-r2500-5-7l-250-320amp-high-output-alternator","title":"1989 GMC R2500 V8 5.7L High Output Alternator","description":"\u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis is a direct fit high-output alternator for the 1989 GMC R2500 5.7L. Being a direct fit, this alternator fits directly into your stock alternator location.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePlug:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis high-output alternator comes with a 14.8 Volt GM Style Internal Regulator with one wire connection. This alternator is not plug-and-play and must be wired with the one wire connection.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003e\u003cmeta charset=\"utf-8\"\u003eNOTE: If you require charging at a certain voltage setpoint, we offer a selection of different voltage regulators that you will need to purchase with the alternator for it to be installed. \u003ca href=\"https:\/\/js-alternators.com\/collections\/regulators\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eView our Regulator Options Here. \u003c\/strong\u003e\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePulley:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis alternator also comes with a smaller pulley, which causes it to spin faster than a larger pulley. This can help the alternator produce its maximum output. With a smaller pulley, it is required to install a 1\/2\" - 1\" shorter belt.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/need-help-finding-shorter-belt-for-your-jsalternators-high-output-alternator\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cspan underline=\"\" text-decoration:=\"\"\u003e\u003cstrong\u003eSee this Blog Article for assistance in finding the correct shorter belt.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eBig 3 Wiring:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eWhen Upgrading to a High-Output Alternator, it is required to upgrade your wiring with the \u003ca href=\"https:\/\/js-alternators.com\/products\/big-3-wiring-upgrade-kits?_pos=1\u0026amp;_psq=big+3\u0026amp;_ss=e\u0026amp;_v=1.0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eBig 3 Wiring Upgrade Kit\u003c\/a\u003e. It is recommended to use 1\/0 100% copper wires for the upgrade. Our Big 3 Wiring Upgrade Kit is 10% off with a purchase of a JS Alternator; use code \u003cstrong\u003eBIG3DISCOUNT\u003c\/strong\u003e at checkout.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/big-3-wiring-upgrade-kits\"\u003e\u003cem\u003eLearn Why The Big 3 Wiring Upgrade Kit is Required for All High Output Alternators\u003c\/em\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"JS Alternators","offers":[{"title":"250 amp alternator \/ 4-Rib Serpentine Pulley","offer_id":42949055938736,"sku":"7861-7-R2500-1989-5.7L-250-6003L","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ 4-Rib Serpentine Pulley","offer_id":42949055971504,"sku":"7861-7-R2500-1989-5.7L-320-6003L","price":449.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ 5-Rib Serpentine Pulley","offer_id":42949056004272,"sku":"7861-7-R2500-1989-5.7L-250-6003L","price":399.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949056037040,"sku":"7861-7-R2500-1989-5.7L-250-6003L","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ 5-Rib Serpentine Pulley","offer_id":42949056069808,"sku":"7861-7-R2500-1989-5.7L-320-6003L","price":449.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":42949056102576,"sku":"7861-7-R2500-1989-5.7L-320-6003L","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/4866\/6800\/files\/1-cs130-angle_0d31438d-720b-4e75-9f82-d5b410efaf46.png?v=1700249790"},{"product_id":"1989-gmc-r2500-7-4l-cs144-250-320-370-400amp-high-output-alternator","title":"1989 GMC R2500 V8 7.4L cs144 High Output Alternator","description":"\u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis is a direct fit high-output alternator for the 1989 GMC R2500 7.4L. Being a direct fit, this alternator fits directly into your stock alternator location.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePlug:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis high-output alternator comes with a 14.8 Volt GM Style Internal Regulator with one wire connection. This alternator is not plug-and-play and must be wired with the one wire connection.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003e\u003cmeta charset=\"utf-8\"\u003eNOTE: If you require charging at a certain voltage setpoint, we offer a selection of different voltage regulators that you will need to purchase with the alternator for it to be installed. \u003ca href=\"https:\/\/js-alternators.com\/collections\/regulators\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eView our Regulator Options Here. \u003c\/strong\u003e\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePulley:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis alternator also comes with a smaller pulley, which causes it to spin faster than a larger pulley. This can help the alternator produce its maximum output. With a smaller pulley, it is required to install a 1\/2\" - 1\" shorter belt.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/need-help-finding-shorter-belt-for-your-jsalternators-high-output-alternator\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cspan underline=\"\" text-decoration:=\"\"\u003e\u003cstrong\u003eSee this Blog Article for assistance in finding the correct shorter belt.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eBig 3 Wiring:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eWhen Upgrading to a High-Output Alternator, it is required to upgrade your wiring with the \u003ca href=\"https:\/\/js-alternators.com\/products\/big-3-wiring-upgrade-kits?_pos=1\u0026amp;_psq=big+3\u0026amp;_ss=e\u0026amp;_v=1.0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eBig 3 Wiring Upgrade Kit\u003c\/a\u003e. It is recommended to use 1\/0 100% copper wires for the upgrade. Our Big 3 Wiring Upgrade Kit is 10% off with a purchase of a JS Alternator; use code \u003cstrong\u003eBIG3DISCOUNT\u003c\/strong\u003e at checkout.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/big-3-wiring-upgrade-kits\"\u003e\u003cem\u003eLearn Why The Big 3 Wiring Upgrade Kit is Required for All High Output Alternators\u003c\/em\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"JS Alternators","offers":[{"title":"250 amp alternator","offer_id":42949056135344,"sku":"7901-2-R2500-1989-7.4L-250-6003L-s6","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator","offer_id":42949056168112,"sku":"7901-2-R2500-1989-7.4L-320-6003L-s6","price":449.0,"currency_code":"USD","in_stock":true},{"title":"370 amp alternator","offer_id":42949056200880,"sku":"7901-2-R2500-1989-7.4L-370-6003L-s6","price":499.0,"currency_code":"USD","in_stock":true},{"title":"400 amp alternator","offer_id":42949056233648,"sku":"7901-2-R2500-1989-7.4L-400-6003L-s6","price":559.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/4866\/6800\/files\/1-cs144-s6-angle_75f0cf5c-03e7-4376-b177-e98ecc2981e3.jpg?v=1700249794"},{"product_id":"1989-chevrolet-r2500-6-2l-250-320amp-high-output-alternator","title":"1989 Chevrolet R2500 V8 6.2L 12si High Output Alternator","description":"\u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis is a direct fit high-output alternator for the 1989 Chevrolet R2500 6.2L. Being a direct fit, this alternator fits directly into your stock alternator location.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePlug:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis high-output alternator comes with a separate adaptor plug. One side will plug directly into the aftermarket high-output alternator, and the other side will plug into the factory plug.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003e\u003cmeta charset=\"utf-8\"\u003eNOTE: If you require charging at a certain voltage setpoint, we offer a selection of different voltage regulators that you will need to purchase with the alternator for it to be installed. \u003ca href=\"https:\/\/js-alternators.com\/collections\/regulators\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eView our Regulator Options Here. \u003c\/strong\u003e\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePulley:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis alternator also comes with a smaller pulley, which causes it to spin faster than a larger pulley. This can help the alternator produce its maximum output. With a smaller pulley, it is required to install a 1\/2\" - 1\" shorter belt.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/need-help-finding-shorter-belt-for-your-jsalternators-high-output-alternator\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cspan underline=\"\" text-decoration:=\"\"\u003e\u003cstrong\u003eSee this Blog Article for assistance in finding the correct shorter belt.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eBig 3 Wiring:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eWhen Upgrading to a High-Output Alternator, it is required to upgrade your wiring with the \u003ca href=\"https:\/\/js-alternators.com\/products\/big-3-wiring-upgrade-kits?_pos=1\u0026amp;_psq=big+3\u0026amp;_ss=e\u0026amp;_v=1.0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eBig 3 Wiring Upgrade Kit\u003c\/a\u003e. It is recommended to use 1\/0 100% copper wires for the upgrade. Our Big 3 Wiring Upgrade Kit is 10% off with a purchase of a JS Alternator; use code \u003cstrong\u003eBIG3DISCOUNT\u003c\/strong\u003e at checkout.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003ca href=\"\" https:\u003e\u003cem\u003eLearn Why The Big 3 Wiring Upgrade Kit is Required for All High Output Alternators\u003c\/em\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"JS Alternators","offers":[{"title":"250 amp alternator \/ V-Belt Pulley","offer_id":43035798470832,"sku":"7272-12-R2500-1989-6.2L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ V-Belt Pulley","offer_id":43035798503600,"sku":"7272-12-R2500-1989-6.2L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ Double V-Belt Pulley","offer_id":43035798536368,"sku":"7272-12-R2500-1989-6.2L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":43035798569136,"sku":"7272-12-R2500-1989-6.2L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ Double V-Belt Pulley","offer_id":43035798601904,"sku":"7272-12-R2500-1989-6.2L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":43035798634672,"sku":"7272-12-R2500-1989-6.2L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/4866\/6800\/files\/1-12si-v1-angle_b6e59525-a0a1-47e4-9880-10e16afca532.png?v=1702767869"},{"product_id":"1989-chevrolet-r2500-7-4l-250-320amp-high-output-alternator","title":"1989 Chevrolet R2500 V8 7.4L 12si High Output Alternator","description":"\u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis is a direct fit high-output alternator for the 1989 Chevrolet R2500 7.4L. Being a direct fit, this alternator fits directly into your stock alternator location.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePlug:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis high-output alternator comes with a separate adaptor plug. One side will plug directly into the aftermarket high-output alternator, and the other side will plug into the factory plug.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003e\u003cmeta charset=\"utf-8\"\u003eNOTE: If you require charging at a certain voltage setpoint, we offer a selection of different voltage regulators that you will need to purchase with the alternator for it to be installed. \u003ca href=\"https:\/\/js-alternators.com\/collections\/regulators\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eView our Regulator Options Here. \u003c\/strong\u003e\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePulley:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eThis alternator also comes with a smaller pulley, which causes it to spin faster than a larger pulley. This can help the alternator produce its maximum output. With a smaller pulley, it is required to install a 1\/2\" - 1\" shorter belt.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/need-help-finding-shorter-belt-for-your-jsalternators-high-output-alternator\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cspan underline=\"\" text-decoration:=\"\"\u003e\u003cstrong\u003eSee this Blog Article for assistance in finding the correct shorter belt.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eBig 3 Wiring:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003cem\u003eWhen Upgrading to a High-Output Alternator, it is required to upgrade your wiring with the \u003ca href=\"https:\/\/js-alternators.com\/products\/big-3-wiring-upgrade-kits?_pos=1\u0026amp;_psq=big+3\u0026amp;_ss=e\u0026amp;_v=1.0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eBig 3 Wiring Upgrade Kit\u003c\/a\u003e. It is recommended to use 1\/0 100% copper wires for the upgrade. Our Big 3 Wiring Upgrade Kit is 10% off with a purchase of a JS Alternator; use code \u003cstrong\u003eBIG3DISCOUNT\u003c\/strong\u003e at checkout.\u003c\/em\u003e\u003c\/p\u003e\n               \u003cp\u003e\u003ca href=\"\" https:\u003e\u003cem\u003eLearn Why The Big 3 Wiring Upgrade Kit is Required for All High Output Alternators\u003c\/em\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"JS Alternators","offers":[{"title":"250 amp alternator \/ V-Belt Pulley","offer_id":43035798667440,"sku":"7272-12-R2500-1989-7.4L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ V-Belt Pulley","offer_id":43035798700208,"sku":"7272-12-R2500-1989-7.4L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ Double V-Belt Pulley","offer_id":43035798732976,"sku":"7272-12-R2500-1989-7.4L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"250 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":43035798765744,"sku":"7272-12-R2500-1989-7.4L-250-adp6003-9801-151","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ Double V-Belt Pulley","offer_id":43035798798512,"sku":"7272-12-R2500-1989-7.4L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator \/ 6-Rib Serpentine Pulley","offer_id":43035798831280,"sku":"7272-12-R2500-1989-7.4L-320-adp6003-9801-151","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/4866\/6800\/files\/1-12si-v1-angle_6f86951a-0064-4ed0-8892-853a1177e38c.png?v=1702767879"},{"product_id":"1989-chevrolet-r2500-7-4l-cs144-250-320-370-400amp-high-output-alternator","title":"1989 Chevrolet R2500 V8 7.4L cs144 High Output Alternator","description":"\u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis is a direct fit high-output alternator for the 1989 Chevrolet R2500 7.4L. Being a direct fit, this alternator fits directly into your stock alternator location.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePlug:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis high-output alternator comes with a 14.8 Volt GM Style Internal Regulator with one wire connection. This alternator is not plug-and-play and must be wired with the one wire connection.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003e\u003cmeta charset=\"utf-8\"\u003eNOTE: If you require charging at a certain voltage setpoint, we offer a selection of different voltage regulators that you will need to purchase with the alternator for it to be installed. \u003ca href=\"https:\/\/js-alternators.com\/collections\/regulators\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eView our Regulator Options Here. \u003c\/strong\u003e\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003ePulley:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eThis alternator also comes with a smaller pulley, which causes it to spin faster than a larger pulley. This can help the alternator produce its maximum output. With a smaller pulley, it is required to install a 1\/2\" - 1\" shorter belt.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/need-help-finding-shorter-belt-for-your-jsalternators-high-output-alternator\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cspan underline=\"\" text-decoration:=\"\"\u003e\u003cstrong\u003eSee this Blog Article for assistance in finding the correct shorter belt.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cspan text-decoration:=\"\" underline=\"\"\u003e\u003cstrong\u003eBig 3 Wiring:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003cem\u003eWhen Upgrading to a High-Output Alternator, it is required to upgrade your wiring with the \u003ca href=\"https:\/\/js-alternators.com\/products\/big-3-wiring-upgrade-kits?_pos=1\u0026amp;_psq=big+3\u0026amp;_ss=e\u0026amp;_v=1.0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eBig 3 Wiring Upgrade Kit\u003c\/a\u003e. It is recommended to use 1\/0 100% copper wires for the upgrade. Our Big 3 Wiring Upgrade Kit is 10% off with a purchase of a JS Alternator; use code \u003cstrong\u003eBIG3DISCOUNT\u003c\/strong\u003e at checkout.\u003c\/em\u003e\u003c\/p\u003e\n                  \u003cp\u003e\u003ca href=\"https:\/\/js-alternators.com\/blogs\/blog\/big-3-wiring-upgrade-kits\"\u003e\u003cem\u003eLearn Why The Big 3 Wiring Upgrade Kit is Required for All High Output Alternators\u003c\/em\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"JS Alternators","offers":[{"title":"250 amp alternator","offer_id":43035798864048,"sku":"7901-2-R2500-1989-7.4L-250-6003L-s6","price":399.0,"currency_code":"USD","in_stock":true},{"title":"320 amp alternator","offer_id":43035798896816,"sku":"7901-2-R2500-1989-7.4L-320-6003L-s6","price":449.0,"currency_code":"USD","in_stock":true},{"title":"370 amp alternator","offer_id":43035798929584,"sku":"7901-2-R2500-1989-7.4L-370-6003L-s6","price":499.0,"currency_code":"USD","in_stock":true},{"title":"400 amp alternator","offer_id":43035798962352,"sku":"7901-2-R2500-1989-7.4L-400-6003L-s6","price":559.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/4866\/6800\/files\/1-cs144-s6-angle_2c5525db-be7d-46d0-91c5-9363b02f0a07.jpg?v=1702767886"}],"url":"https:\/\/jsalternatorsdealers.com\/collections\/r2500\/gmc.oembed","provider":"JS Alternators","version":"1.0","type":"link"}