Ignitions and Electrical› Charging Systems

Powermaster

ALT GM CS121 POLISH 100A 6 GRV PULLEY OFFSET RIGHT 1 WIRE OR OE HOOKUP

$313.89

SKU: P01Q 279261-114

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

Moderate — 2–4 hours

Description

This is a polished, 100-amp alternator with a V-belt pulley and GM CS121 case style. It is designed for 1-wire or 3-wire operation and is individually dyno-tested to ensure performance. It provides over 100 amps at the top end and 60+ amps at idle. This is one of the smallest GM-style alternators available, offering a high output-to-weight/size ratio. It features an internal regulator and includes the alternator pulley, but mounting brackets are not included. The alternator has a 3-hole mounting style.

Fitment

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Specifications

BrandPowermaster
Part NumberP01Q 279261-114

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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