Four Seasons 90484 HVAC Heater Core. Fits what vehicles: 1988 Chevrolet C15, 1988-1991 Chevrolet C1500, 1988-1991 Chevrolet C2500, 1988-1991 Chevrolet C35, 1988-1991 Chevrolet C3500, 1988-1991 Chevrolet K1500, 1988-1991 Chevrolet K2500, 1988-1991 Chevrolet K3500, 1990 Chevrolet C60, 1990-1992 Chevrolet C60 Kodiak, 1990 Chevrolet C70, 1990-1992 Chevrolet C70 Kodiak, 1990 GMC C1500, 1990 GMC C2500, 1990 GMC C3500, 1990 GMC K1500, 1990 GMC K2500, 1990 GMC K3500, 1991 Chevrolet C3500HD.
