API 63QX56P Radiator Cap Fits 1977-1978 GMC G35 Radiator Cap -- Standard; 16 lb

For 1978 GMC G35 Radiator Cap 32618NBSN Standard -- Relief pressure 16 lb

For 1978 GMC G35 Radiator Cap 92352DTHH Standard -- Relief pressure 16 lb

For 1978 GMC G35 Radiator Cap 83494HYJW Safety Lever -- Relief pressure 16 lb

For 1978 GMC G35 Radiator Cap 43322XVZR Safety Lever -- Relief pressure 16 lb

API 23TT59G Radiator Cap Fits 1977-1978 GMC K35 Radiator Cap -- Standard; 16 lb

API 76WS14Y Radiator Cap Fits 1977-1978 GMC G25 Radiator Cap -- Standard; 16 lb

For 1977-1978 GMC G25 Radiator Cap API 33323DJ Radiator Cap -- Standard; 16 lb