Harnesses, Wiring & Wiring Accessories | Truck-Lite Harness > Harnesses, Wiring & Wiring Accessories; Welcome to the new Truck-Lite. Questions? We've got answers. 1-800-562-5012. Trailer Connector Cable Replacement Plugs (4) Trailer Cords (4) Product List. Customer Service Customer Service. Warranty; Contact Us; FAQ; Terms; Company Company. Locations Harnesses - Electrical - Parts - Semi-Trailers for Sale or Home / Semi Truck Parts / Semi Trailer Electrical Parts / Trailer Harnesses Trailer Harnesses Thank you for your submission, we will be in contact with you shortly.