For 1977-1978 GMC G35 Radiator Cap API 11357PT Radiator Cap -- Standard; 16 lb

For 1977-1978 GMC P25 Radiator Cap API 65633GC Radiator Cap -- Standard; 16 lb

For 1977-1978 GMC P35 Radiator Cap API 58949RB Radiator Cap -- Standard; 16 lb

For 1977 GMC K35 Radiator Cap 65922FT Standard -- Relief pressure 16 lb

For 1977-1978 GMC G25 Radiator Cap API 22226GP Radiator Cap -- Standard; 16 lb

For 1977-1978 GMC K35 Radiator Cap API 17791TH

For 1992-1993 GMC Typhoon Radiator Cap API 37847NQ 4.3L V6

For 1977-1978 GMC K25 Suburban Radiator Cap API 53564HG