Truck & Trailer Wiring Harnesses

Shop truck harnesses, trailer wiring harnesses, ABS harnesses, jumper harnesses, rear sill harnesses, main harness assemblies, lighting harnesses, and related electrical connection parts at PIF Parts. Whether you are repairing a commercial trailer, maintaining fleet vehicles, or sourcing a hard-to-find harness for older equipment, our harness category helps keep electrical, lighting, and ABS systems connected and working properly.

Our harness inventory may include genuine, OEM, aftermarket, new old stock, open box, obsolete, and hard-to-find parts from brands such as Utility, Truck-Lite, Phillips EHD, Reitnouer, Volvo, Freightliner, Haldex, Grote, Grote, Tectran, and other commercial vehicle or trailer electrical part manufacturers. From ABS power harnesses and main trailer harnesses to rear sill harnesses, LED light harnesses, jumper harnesses, plugs, and wiring assemblies, PIF Parts helps shops, fleets, and independent buyers find replacement harnesses for truck and trailer repair.

Replacement ABS Harnesses, Jumper Harnesses & Wiring Assemblies

Wiring harnesses are exposed to vibration, moisture, road debris, corrosion, repeated connections, temperature changes, and daily fleet use. Replacing damaged, corroded, cut, or failing harnesses can help restore lighting, ABS communication, power delivery, and reliable electrical system operation.

Because harness fitment can vary by vehicle or trailer manufacturer, system type, connector style, plug count, wire gauge, harness length, mounting location, voltage, and part number, always compare your existing part number, cross-reference number, connector type, measurements, and application details before ordering. If you need help reviewing a harness or cross-reference, contact PIF Parts and we can help confirm available details.