For 1988-1991 GMC R3500 License Light Bulb API 46885RQXH 1989 1990

For 1989-1991 Chevrolet R3500 License Light Bulb Philips 78478GKRY 1990

For 1989-1991 Chevrolet R3500 License Light Bulb Philips 57383BWCR 1990

For 1988-2000 Chevrolet K2500 License Light Bulb API 79425XKQW 1989 1990 1991

For 1989-1991, 1998-2004 Chevrolet Tracker License Light Bulb API 56157GTDP 1990

For 1988-1999 Chevrolet K1500 License Light Bulb API 63141WMCT 1989 1990 1991

For 1989-1991 Chevrolet V3500 License Light Bulb API 72677CQSZ 1990

For 1988-2000 Chevrolet C2500 License Light Bulb API 86765MHSM 1989 1990 1991