GM 12SI Alt 140A Smooth Look

Name: GM 12SI Alt 140A Smooth Look
Brand: Powermaster
SKU: P01Q 37297-114
Price: 277.23 USD
Availability: InStock

$277.23

SKU: P01Q 37297-114

In Stock

Ships by Jun 8

Free Shipping

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Description

The Powermaster 37297-114 Smooth Look Alternator is a 150 amp, 12si style alternator designed for a clean, custom appearance. It features a smooth die-cast housing with a teardrop design, offering an upgraded aesthetic. This alternator provides over 150 amps at peak output and over 100 amps at idle.

Fitment

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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

Brand	Powermaster
Part Number	P01Q 37297-114

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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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