Custom Alternator
Powdercoating & Anodizing

Premium custom finishes for high-performance alternators. Engineered to ignite performance.
Explore our colors

Powdercoating & Anodized Colors | Custom Alternator Finish Options | JS Alternators

Built. Tested. Then Finished Your Way.

Pick Your Finish

Every JS Alternators high-output alternator is hand-built in the USA, bench tested, and backed by our Lifetime Warranty — then coated in-house in the color your build deserves. Powdercoating for standard alternators, exact Polaris Slingshot color matches, and anodized finishes for our billet line. Cosmetic only, applied after testing — it never touches performance.

  • 30+ Colors
  • Made in the USA
  • Lifetime Warranty
  • Bench Tested
  • Coated In-House

01 — Standard Alternators

Powdercoat Colors

Available on our 250, 320, 370 and 400 amp high-output alternators — just pick your color from the Powdercoating option on any alternator page. Standard colors $49 · Illusion, Fractured & Prismatic premium finishes $59.

Gloss Black powdercoat swatchGloss Black$49
Semi Gloss Black powdercoat swatchSemi Gloss Black$49
Autumn Black Leather powdercoat swatchAutumn Black Leather$49
Pearl White powdercoat swatchPearl White$49
Super Chrome Plus powdercoat swatchSuper Chrome Plus$49
Goldtastic powdercoat swatchGoldtastic$49
Desert Leather powdercoat swatchDesert Leather$49
Very Red powdercoat swatchVery Red$49
Bright Orange powdercoat swatchBright Orange$49
Sunshine Yellow powdercoat swatchSunshine Yellow$49
Shocker Yellow powdercoat swatchShocker Yellow$49
Neon Green powdercoat swatchNeon Green$49
Sour Apple powdercoat swatchSour Apple$49
Farm Green powdercoat swatchFarm Green$49
Gutter Green powdercoat swatchGutter Green$49
Winter Mint powdercoat swatchWinter Mint$49
Cortez Teal powdercoat swatchCortez Teal$49
Tropical Breeze powdercoat swatchTropical Breeze$49
Paradise Shimmer powdercoat swatchParadise Shimmer$49
Cheater Blue powdercoat swatchCheater Blue$49
Lollypop Purple powdercoat swatchLollypop Purple$49
Passion Pink powdercoat swatchPassion Pink$49
PremiumIllusion Cherry powdercoat swatchIllusion Cherry$59
PremiumFractured Illusion Cherry powdercoat swatchFractured Illusion Cherry$59
PremiumIllusion Malbec powdercoat swatchIllusion Malbec$59
PremiumIllusion Violet powdercoat swatchIllusion Violet$59
PremiumIllusion Lime Time powdercoat swatchIllusion Lime Time$59
PremiumFractured Illusion Green powdercoat swatchFractured Illusion Green$59
PremiumPrismatic Universe powdercoat swatchPrismatic Universe$59
6,500+Custom Colors

Don't See Your Color?

We'll coat your alternator in nearly any Prismatic Powders color. Pick the Custom Prismatic Powders Color option ($59) and give us the color name or code at checkout — or email us first to confirm availability and lead time.

02 — Polaris Slingshot

Slingshot Color-Match Powdercoating

Matched to the factory Polaris Slingshot paint codes, so your alternator disappears into the build — or stands out with it. All Slingshot color matches are $49.

Polaris Afterburner Orange swatchAfterburner Orange
Polaris Black Metallic swatchBlack Metallic
Polaris Blue Fire swatchBlue Fire
Polaris Browning swatchBrowning
Polaris Charcoal swatchCharcoal
Polaris Daytona Yellow swatchDaytona Yellow
Polaris Dormant Midnight Cherry swatchDormant Midnight Cherry
Polaris Dragon Green swatchDragon Green
Polaris Electric Blue swatchElectric Blue
Polaris Envy Lime Green Metallic swatchEnvy Lime Green Metallic
Polaris Ghost Gray swatchGhost Gray
Polaris Indy Red swatchIndy Red
Polaris Lime Squeeze swatchLime Squeeze
Polaris Midnight Purple swatchMidnight Purple
Polaris Midnight Storm Fade swatchMidnight Storm Fade
Polaris Navy Blue swatchNavy Blue
Polaris Neon Fade swatchNeon Fade
Polaris Nuclear Orange swatchNuclear Orange
Polaris Orange swatchOrange
Polaris Orange Madness swatchOrange Madness
Polaris Pacific Teal swatchPacific Teal
Polaris Red Metallic swatchRed Metallic
Polaris Sunset Red swatchSunset Red
Polaris Turbo Silver swatchTurbo Silver
Polaris Voodoo Blue swatchVoodoo Blue
Polaris White Pearl swatchWhite Pearl

03 — Billet Line

Billet Alternators — Anodized Colors

Our CNC-machined billet alternators aren't powdercoated — they're anodized. The color bonds into the aluminum itself for a finish that won't chip, flake, or fade. Standard machined finish plus 8 anodized colors.

Billet alternator standard machined finishStandard (Machined)
Billet alternator anodized blackBlack
Billet alternator anodized redRed
Billet alternator anodized blueBlue
Billet alternator anodized tealTeal
Billet alternator anodized goldGold
Billet alternator anodized greenGreen
Billet alternator anodized orangeOrange
Billet alternator anodized violetViolet

What Is Powdercoating?

A dry finishing process: electrostatically charged powder is applied to the alternator housing, then cured under heat into a smooth, durable shell. It shrugs off chips, scratches, and corrosion far better than paint, and it's built for the heat cycles of an engine bay. Anodizing — used on our billet line — goes further: the color becomes part of the aluminum surface itself.

Good to Know

  • Cosmetic only — never affects output, performance, or your warranty.
  • External housing only; terminals and connection points stay uncoated for a clean electrical connection.
  • Coated builds add lead time and can't be combined with expedited build time — ask us if you're on a deadline.
  • Every unit is fully bench tested before it ships, coated or not.

Ready to Build Yours?

Pick your alternator, pick your color — we build it, test it, and coat it in-house.

Shop High Output Alternators Ask About a Custom Color Questions? Call (888) 245-3680