SMP TS-621 Standard Other Temperature Units and Switches fits 1991 - 1987 Chevrolet Blazer; 1986 - 1985 Chevrolet C10; 1986 - 1985 Chevrolet C10 Suburban; 1993 - 1988 Chevrolet C1500; 1986 - 1985 Chevrolet C20; 1986 - 1985 Chevrolet C20 Suburban; 1993 - 1988 Chevrolet C2500; 1986 - 1985 Chevrolet C30; 1993 - 1988 Ch