Ignitions and Electrical Charging Systems

Powermaster

ALT GM CS121 IN5X5IN BLACK 100A 12V 6 GRV PULLEY SIDE BAT POST FAN & BAFFLE 1 WI

$327.23

SKU: P01Q 8472-104

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Solve low voltage problems with an easy to install Powermaster alternator kit. This is the smallest GM Style Alternator, offering 100+ amps at top end and 60+ amps at idle. It's a one-wire unit for 1 or 3 wire operation, individually dyno tested with a proof of performance guarantee, and features a high output to weight/size ratio. Its compact design allows it to fit snugly in a 5X5 space.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandPowermaster
Part NumberP01Q 8472-104

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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