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Powermaster 57297 GM 12SI 150 Amp Smooth Look Alternator Black

Manufacturer

Picture for manufacturer Powermaster

Part Number

57297
14 reviews
Sale Price

$219.44

2 left at this price

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Usually delivered within 2 days

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FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Powermaster 57297 is a high-output GM 12SI-style alternator designed to deliver reliable power for performance and street applications. This alternator features a distinctive black smooth look design with a sleek die-cast housing and integrated fan baffle, providing both style and superior cooling performance.

Key Features:

  • 150 amp maximum output with exceptional idle performance: 90 amps at idle, 125 amps at cruising speed
  • Internally regulated for simplified installation and reliable operation
  • Flexible 1-wire or 3-wire hookup capability for versatile installation options
  • Single groove V-belt pulley included for standard belt applications
  • Straight mount design with 6.61-inch bolt spacing fits most 1965-1985 GM models
  • Black powdercoated finish with custom smooth look styling and fan baffle
  • All-new components assembled and tested in Powermaster's USA facility

This alternator provides the power needed for high-performance engines, upgraded audio systems, and additional electrical accessories while maintaining a clean, professional appearance under the hood. The smooth look design eliminates unsightly external components for a streamlined custom appearance.

Great prices. Fast shipping. Huge inventory.

Very very good, even great! Best prices on the web and fastes service. Will continue to purchase all my automotive needs from here!

This was a site I was unfamiliar with at first. However after doing a little price comparison amongst the big names, this site had beaten Amazon, eBay, and online auto parts chains in terms of price. Made sure it was the same brand part I was looking for, went ahead and ordered, and had it in the next two days. Was pleasantly surprised, thanks!

So far all's good.

Easy navigation between the site and paypal. Reasonable shipping and handling costs. Quick and easy!

good price

Good contents of what I was looking for. Pretty quick.

Love prices and availability of needed products.

Autoplicity was plenty cheaper than competitors for the springs I needed. I was shopping around and left the website after beginning a transaction and they sent me a coupon for 25% off shipping if I would return and purchase from them, which was cool. Unfortunately the coupon code didn't change the price and I didn't receive 25% off, but it was still cheaper than others.

Great prices and fast shipping. What more are you looking for?

Great Experience and Awesome website. Affordable price as well

1st time customer. Hope to use again.

Competitive prices but wish there were vehicle application lists for parts.

quick and easy!

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Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy