1988 k1500 wiring harness | eBay Find great deals on eBay for 1988 k1500 wiring harness. Shop with confidence. Skip to main content. eBay Logo: Trailer Wiring Harness For 88-00 Chevy C/K 1500 2500 3500, Except 88-91 Crew Cab (Fits: 1988 K1500) Brand New. $21. For 1988-1995 Chevrolet K1500 Engine Wiring Harness MSD 78431KS 1989 1991 1994 (Fits: 1988 K1500) Brand New 1988 Chevrolet C1500 Wiring Harness | AutoPartsWarehouse Looking for a 1988 Chevrolet C1500 Wiring Harness? Get yours at Wholesale Prices and Free Shipping over $50 only here at AutoPartsWarehouse!