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Ignitions and Electrical› Charging Systems

Powermaster

Chrome 140 Amp Small Delco Alternator

$307.50 $288.34 Save $19.16

SKU: P01Q 37803

In Stock
In Stock
Ships by Jun 7
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Powermaster 37803 Street Alternator is a CS130-style, 140-amp, 12V unit designed for GM applications, featuring a 6-rib serpentine pulley and straight mounting. It provides 95 amps at idle and 140 amps at top-end, suitable for both 1-wire and 3-wire operation. Constructed from durable materials with a chrome finish, this high-performance alternator is individually dyno tested to guarantee reliability and is engineered to replace lower amperage units, ensuring consistent electrical power for vehicle accessories and charging needs.

Fitment

Fitment Guaranteed

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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 37803

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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