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POWERMASTER

Powermaster 57294 Alternator, Black

  • Based on 157 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Aug 23
Order within 10 hours and 49 minutes
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Features

  • Package Dimensions: 31.75 H x 16.51 L x 17.018 W (centimeters)
  • Fit type: Vehicle Specific
  • Country of Origin : United States
  • Package Weight: 3.801 kilograms

Description

Powermaster 57294

Item Package Dimensions L x W x H: ‎11.22 x 9.29 x 7.36 inches


Package Weight: ‎6.29 kg


Item Dimensions LxWxH: ‎9 x 7.5 x 7.5 inches


Item Weight: ‎12 pounds


Brand Name: ‎POWERMASTER


Warranty Description: ‎Manufacturer Warranty


Model Name: ‎57294


Color: ‎Black/Chrome


Material: ‎Plastic


Suggested Users: ‎unisex-adult


Number of Items: ‎1


Manufacturer: ‎Powermaster


Part Number: ‎57294


Style: ‎Traditional


Included Components: ‎Powermaster - Alt GM 12SI Black 150A 1V Pulley & B


Date First Available: September 14, 2006


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Aug 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Solved EFI/Electric fans Power issue on 1985 Jimmy
I needed a higher power alternator for my 1985 GMC Jimmy, w/SBC350, after installing a Holley Sniper and electric fans. This solved my power issues.
Reviewed in the United States on April 1, 2026 by Chris
    • Great alternator
Great quality product, over 100amp at idle
Reviewed in the United States on April 15, 2026 by Mr. Alan Olner
    • Works as expected
Works well, fits as expected, keeps 14 + volts with all my off road and search lights on, After 10 minutes it was barely warm. Very happy with my purchase and it’s made in the USA, not some Chinese garbage.
Reviewed in the United States on September 16, 2019 by PETE DICKSON
    • Don’t but this for a 1979 ford v8 engine of any kind.
Buyer he warned!!!!!! Fire whoever said this fits a 1979 ford f150 or bronco. Mounting location depths are incorrect. Bolt holes are incorrect. Size and location room for installation are incorrect. Pulley size and v-pattern are incorrect. If you buy this be prepared to fabricate everything you need to mount it and connect it to a 79 ford anything. I did it and it was not an issue because I can fabricate. Knowing this now I could have purchased countless better and cheaper alternators considering I had to completely fabricate everything. ... show more
Reviewed in the United States on July 9, 2026 by Amazon Customer
    • Works as promised EXCEPT....
...Except for the fact that any of the old style alternators (no matter the amp rating) seem to be unable to supply all accessories at idle, in gear at a stoplight in the heavy rain when you need headlights, defrost on high (which adds the A/C), rear defogger plus my SPAL electric radiator fans. It will only give about 11 volts so the battery is being consumed rather than charged during these times. I even have all LED lights everywhere which draw a fraction of old style lamp bulbs. My attempt to solve this will be the smallest alternator pulley I could find which I have used on previous alternators to good effect--- that is, under the above conditions the alternator keeps charging and the dash voltmeter reads 14.5 volts the entire time, confirmed by my VOM at the battery terminals. It is like the engine idling an extra 500 rpm with the original pulley. ... show more
Reviewed in the United States on October 11, 2019 by Stephen Wolfe
    • For Jeepers, you can't find a better replacement!
If this alternator doesn't last but for the warranty duration, I'd be satisfied with my purchase! By far, it's a definite upgrade from the stock OEM version. I have LEDs galore both inside and out and couldn't run certain multiple lights at the same time. That is until now! And that's not even factoring in the sound system. At idle with 3 sets of spot lights turned on this thing had a 100 amp output. That was more than the OEM put out without any lights and going down the road. They have a customer for life right here! ... show more
Reviewed in the United States on December 17, 2023 by Mark C.
    • Great priduct
Great product. Does what I wanted. Keep yj with a sbc. Needed to keep 14 volts at idle to make sure my electric fan ran properly. Does just that. No more dropping down below 12 volts at idle. Battery stays charged. Used to have to charge it every 3 weeks. I am usually running at low rpms so this has been money well spent. Had it on for about 6 weeks now. No issues ... show more
Reviewed in the United States on May 20, 2021 by Michael Bechtel
    • Charging problem solved
Perfect fit and charges at the advertised 14.8 volts. A must must with electric fans and 2000 watt stereo.
Reviewed in the United States on June 29, 2021 by Bill Mahoney

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