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PA Performance 1G to 3G Alternator Plug Upgrade (79-85 All)

Market Price $34.99 You Save 23% ($8.00)
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  • Item 95323

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    Features & Details

    • Used to Upgrade from 1G to 3G Alternator
    • Retains Stock Wiring and OEM Warning Lights
    • Fits 1979 to 1985 Mustangs
    More Power. This PA Performance Alternator Upgrade Plug is needed to convert early Mustangs with a 1G Series alternator to a more powerful 3G 130 Amp alternator.

    Retains Stock Wiring And OEM Warning Lights. PA Performance incorporated a new replacement external regulator box to capture the proper circuit and retains the stock wiring harness along with their own 3-wire (3G Series) regulator plug. This kit allows you to retain the OEM warning lights and shunt type ammeter.

    Required Upgrade. All alternator power upgrades require a larger gauge (#4 or #6) wire to be run from the output of the alternator to the vehicles harness. Pa Performance recommends their 4 Gauge Premium Power Wire Kit.

    Application. This PA Performance 1G to 3G Alternator Upgrade Plug is designed for 1979 to 1985 Mustangs that are upgrading to a more powerful 3G Series 130 Amp alternator.

    Fitment: 1979 1980 1981 1982 1983 1984 1985 Details

    MPN# 462802C

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Alternator Plug Upgrade Module
    • (1) Connector
    Installation Info
    Tech Specs
    Will it fit my Mustang?

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    Questions & Answers (1)

    1 Top Rated Question

    I am upgrading my alternator from 1G to 3G and would like to ask if this will work on my 1970 Ford Ranchero GT.

    • Hello! The PA Performance 1G to 3G Alternator Plug Upgrade is only designed to work with 79-85 Mustangs.

    Helpful (0)
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    Customer Reviews (3) Write a Review

    Overall Rating 4

    out of 5 stars

    • 3/5

      March 08, 2018

      3G Alernator plug upgrade

      I give this 3 stars because it came with no instructions. Besides letting you keep your original wiring harness I am not sure what the function is of this box and why I should use it. I was told by a PA Performance tech it's so you won't burn up your gauges but was told by another it 's so you won't burn up the 3G alternator regulator and you should install a volt meter. I could not find any detailed instructions at PA Performance web site or anywhere else on the web. This product needs better support.


      Year: 2017 Submodel: GT350

      Helpful (8)

    • 5/5

      July 01, 2016

      1g to 3g conversion

      Used this on my 85 GT, easy directions, less than 1.5 hrs to install, 13.5 volts at idle.


      Year: 1985 Submodel: GT

      Helpful (10)

    • 4/5

      July 14, 2013

      Alt upgrade

      Plug and play makes upgrading 3G alt in my 85 easy thanks


      Year: 1985 Submodel: Cobra Toronto, ON, Canada

      Helpful (12)

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