American Autowire offers factory original GM OEM restoration automotive wiring harnesses and accessories through our Factory Fit® product line. All Factory Fit® reproduction wiring harnesses are made exactly to GM OEM factory standards, using OEM blueprints and GM parts. Wiring harnesses and accessories are installed as a direct replacement to the original factory wiring - no guesswork. We call it a "plug and play" experience. When you use our OEM division, you can be sure you will get a perfect fit - a Factory Fit®! Factory Fit® encompasses over 10,000 wiring harnesses, battery cables, switches, and spark plug wire sets for many GM models.

American Autowire offers many custom wiring harness and accessory options to builders looking to update a classic car or to fully customize a street rod. The Classic Update Series of wiring harness kits is made for the restoration enthusiast who wants some modern amenities in their classic vehicle. These complete wiring harness kits are designed for specific GM or Ford year/make/model vehiclesand include everything you need to wire your classic vehicle. Our universal wiring harness kits can be found in two formats: integrated fuse box and modular fuse box. The Power Plus and Builder Series use integrated fuse box systems, which combine a factory-style pre-wired fuse box with a new simplified installation approach. The Highway Series wiring kits use a modular fuse panel, provide the highest level of customization, and can handle the most demanding power requirements and accessories. No matter what level of modification or customization you want in your vehicle, American Autowire has a product that can cover your wiring harness and accessory needs!