1971 FORD BRONCO  - Powermaster High-Output Alternator (Black) - 8-57140 - 8-57140| 4WD.com
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1971 FORD BRONCO  - Powermaster High-Output Alternator (Black) - 8-57140 - 8-57140

Powermaster High-Output Alternator (Black) - 8-57140

Powermaster | Part Number: POW8-57140


  • Amps: 140 Amperes
  • Wiring: One-Wire
  • Fitment: Direct Fit
  • Finish: Black
  • In_Stock: In Stock
  • In_Stock: In Stock


  • 76-77 CJ
  • 76-77 Grand Wagoneer
  • 76-77 J-series truck
  • V8
  • 100 amp
  • Black coated


Just by adding a few electrical accessories such as driving lights, auxiliary cooling fans, or a mega-sound system you can quickly exceed the capacity of your Jeep alternator. POWERMASTER has the solution - high output alternators that bolt in place of the OEM alternator. They feature a slightly larger case that bolts to all factory brackets and use the same belt. POWERMASTER has reengineered the power curve to deliver up to 50% more output at idle. Every POWERMASTER high output alternator is tested and comes with a proof of performance tag.


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