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

For 1978 GMC G25 Radiator Cap 72942DDQR Standard -- Relief pressure 16 lb

For 1978 GMC G25 Radiator Cap 64828MCDH Standard -- Relief pressure 16 lb

For 1978 GMC G25 Radiator Cap 93555WXJZ Safety Lever -- Relief pressure 16 lb

For 1978 GMC G25 Radiator Cap 92524SYJT Safety Lever -- Relief pressure 16 lb

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

Radiator Cap For 1977-1978 GMC G25 NJ618XM Radiator Cap -- Standard; 16 lb

For 1977-1978 GMC G35 Radiator Cap API 51583HF Radiator Cap -- Standard; 16 lb