Ford Mustang 1G to 3G Plug Upgrade by PA Performance

Mustang 1G to 3G Plug Upgrade

Details   |  Description   |  Videos   |  Reviews
  • Mustang 1G to 3G Plug Upgrade
Mustang 1G to 3G Plug Upgrade

Upgrade from factory 1G alternator to 3G style and retain your factory wiring and gauges.

Item #PA-462802C1

Everyday Low Price: $26.99

Extended delivery time required

Add to cart


  • uses factory wiring


  • External Regulator Box
  • Retains OEM Warning lights and Shunt type Ammeter

What's in the Box

  • (1) External Regulator
  • (1) 3G Plug with pigtail
  • Install Instructions

Product Description

This kit is made specifically for the installation of a Ford 3G alternator on any vehicle where the stock alternator was EXTERNALLY regulated

We incorporate a new replacement external regulator box (as shown) to capture the proper circuit and retain the stock wiring harness along with our own 3-wire (3G Series) regulator plug. This kit allows the customer to retain the OEM warning lights and shunt type ammeter **

Installation only requires the customer replace the stock external regulator with the one provided, install the alternator and our 3-wire plug, then make one crimp connection from the original wires at the alternator. All alternator upgrades require a large (#6 or #4 gauge) wire be run from the output of the alternator to the vehicle harness.

** direct reading ammeter should not be used or should be bridged due to the significant increase in measured amperage with upgrade alternators

Product Videos

Mustang 130 Amp Alternator Install (87-93)

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

Product Reviews (1)

out of 5 stars
5 stars
1 reviews
5 stars    1
4 stars    0
3 stars    0
2 stars    0
1 star    0

1 of 1 REVIEWS
1 of 1 REVIEWS

5 Stars   The Way To Go
By on 2/11/2014
Installed this unit with the new 130 amp alternator and all I can say is WOW!. I should have done that years ago. Quick, easy install and my factory amp meter still works as intended without chopping wires up. No more dimming lights at idle and it keeps up with my electric fan even with power pulleys. One of the best upgrades my old fox has had in years!!!!!!!!

Yes, I would recommend this item to a friend!

Was this review helpful to you?

Vehicle Applications

Ford Mustang - 1979 (79) - 1980 (80) - 1981 (81) - 1982 (82) - 1983 (83) - 1984 (84) - 1985 (85)

About This Brand

PA Performance
The owners and partners of PA-Performance have been building, customizing and modifying their own vehicles for almost 20 years. Over these years, they have researched and designed high quality charging system parts for Mustangs ranging from alternators, starters, and starting system wiring harnesses. Choose from direct replacement stock or upgraded alternators to get your Mustang running good as new!

Look for Similar Items by Category

Ford Mustang Parts » Mustang Engine & Underhood » Mustang Alternators & Parts » Mustang Alternator Parts
1979-1993 Mustang Parts » 1979-1993 Mustang Engine Parts » 1979-1993 Mustang Accessory Drive » 1979-1993 Mustang Alternators & Parts

Products by Vehicle