GM Genuine Parts 25975983 Tail Light Wiring Harness Product description GM Genuine Parts Tail Light Harnesses are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These harnesses are organized sets of wires, terminals, and connectors that run throughout your entire vehicle.3.8/5(21) Related searches for gm tail light wiring harness headlight wiring harness diagramheadlight wiring harness replacementheadlight wiring harness repair kitsgm headlight switch wiring diagramheadlight wiring harness upgradechevy tail light wiring harnesstail light wiring harness chevroletford tail light wiring harness