Ignitions and Electrical› Charging Systems

Powermaster

ALT GM DENSO BLACK 180A 3" 6 GRV UN

$461.67

SKU: P01Q 8540093-17.5

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

Moderate — 2–4 hours

Description

The Powermaster 8540093-17.5 Alternator is a race-grade, high-output charging solution built on the GM Denso platform, delivering a reliable 180 amps of output with a preset voltage of 17.5V. It features a natural finish, a 3" diameter 6-groove underdrive pulley, and HPR (High Performance Rectifier) technology for enhanced voltage stability and thermal management. This model is ideal for motorsport applications where elevated voltage improves ignition, fuel delivery, and data system performance, while the underdrive pulley helps protect the alternator at high RPM.

Fitment

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Specifications

BrandPowermaster
Part NumberP01Q 8540093-17.5

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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