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20 Circuit GM Restoration Wiring Harness

Usually Ships Within 24 Hours

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Product Overview

Our 20 Circuit GM Restoration Wiring Harness is one of the best options on the market. All of our restoration wiring harnesses are 100% Midwest designed, engineered & manufactured. Each kit is hand-built in Wisconsin.

Will This Work In My Project?

This kit is designed for any GM vechicle through the mid-1980s with a carburated motor including the Bel Air, Camaro, Caprice, Chevelle, Chevette, Corvette, Coupe, El Camino, Impala, Malibu, Monte Carlo, Nomad, Nova, Pickup, Roadster, Vega, custom projects, and more!

Every wire in the 20 circuit GM wiring kit is color coded & labeled. Each group of wires is provided with plenty of wire length to cover virtually every GM vehicle make and model. The wire will be plenty long for your project (25ft to the back of the vehicle), allowing you to cut them to the perfect length and the perfect fit for your build.

Complete Wiring...Headlights to Tail Lights

Connectors & Terminals Included - We've got you covered

Every harness comes with a box of connectors & terminals for your installation.
This set of install accessories is what we've found to be the best combination for restoration based on working with thousands of projects over 25+ years.

Perfect Combination of Unique Features

Trusted By The Pros

Product Reviews

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  1. American quality

    Posted by Dave on 26th Nov 2017

    It will be awhile before I install this kit but I have checked it out and was very impressed the attention to detail and the quality are great. The kit looks simple to install with straight forward instructions. I can't wait to get it put in.

  2. Restoring a 1977 Formula 400

    Posted by Charles Elder on 1st Dec 2015

    I received the packages and inspected all of the wires, switches and connectors. I am impressed with the complete set. I will start the project within the next 2 weeks and look forward to a very successful completion. This is the very best set that I have seen.

  3. Quality

    Posted by Dallas on 11th Nov 2015

    Just about 75% finished installing this harness. Excellent quality and easy to follow directions since all wires are labeled. Installed on a 1976 Chevrolet El Camino that had a major wiring problem. I would recommend this product to anyone in need of replacing a harness on an older vehicle. Great quality and excellent price.

  4. best investment yet

    Posted by Jason Holsey on 29th Mar 2015

    This harness is easy to install, even for someone who has never done a restoration before. This restoration has given my ride a whole new look. Before my lights were dim and alot of things didnt even work. This harness made all the difference. Thanks

  5. rewire 66 el camino,22 circuit

    Posted by mike on 16th Oct 2012

    my first complete rewire,very good quality materials,detailed instructions,every thing worked perfect first time,was always afraid of wiring a car but this kit made it very simple. would recommend it to any one.plenty of circuits left to add anything you could want to add later.my car has hei,aod,after market gauges,heat and air,sterio,fans,MADE IN USA

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