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Ignitions and Electrical› Charging Systems

Powermaster

Alternator 220 Amps GM 6-Groove - Natural

$547.50 $501.67 Save $45.83

SKU: P01Q 482378

In Stock
In Stock
Ships by Jun 10
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

This Powermaster 482378 is an AD244-style alternator for GM vehicles, providing 220 amps at 12 volts with an OEM 4-pin connector and a 6-rib serpentine pulley. It features a durable aluminum case, a natural finish, and a newly designed voltage regulator with adjustable voltage and power-saving modes. The internal circuit is fully epoxy-sealed for reliability.

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 482378

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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