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150 amp Powermaster Natural Finish Alternator 1975-1977 3" Mount

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Product Details

Powermaster Motorsports is the leader in high performance OEM replacement alternators for the automotive industry.
Modern accessories can take their toll on a vehicle's electrical system. Powermaster offers High Amperage Alternators to give your electrical system the extra boost it needs. If you have added lights, winches, or other power hungry accessories, Powermaster offers easy to install high amp upgrades.

Note that the alternator comes with a single-groove pulley. If you have a double-groove pulley, you will need to change them over (they are a direct swap). Also, if you have an older model vehicle with an external voltage regulator, you can use this alternator with some minor wiring changes under the hood. This will allow you to remove the external regulator and associated wiring too!

These are rebuilt here in the USA!

  • Fits 1975-1977 Wagoneer
  • Fits 1975-1977 Cherokee
  • Fits 1975-1977 J-10 / J-20
  • Models 3" Wide Mounting Foot Style Only
  • Each alternator is tested before shipping by Powermaster
  • 150 Amp
  • Natural Finish

Reviews (1)

  • A real time safer

    Posted by Kathy Gant on Jan 31st 2020

    Easy up grade bolted right up (already had correct pulley installed for the stock v-belt that is used on my 1977 J20, just added a 6 gauge power wire and 6 gauge ground wire).