For 1979-1980 GMC P1500 Radiator Cap 15367PFVX Standard -- Relief pressure 16 lb

For 1979-1980 GMC P1500 Radiator Cap 94242QZDB Standard -- Relief pressure 16 lb

Radiator Cap For 1979-1980 GMC P1500 JJ269VV Radiator Cap -- Standard; 16 lb

API 82KB77N Radiator Cap Fits 1979-1980 GMC P1500

API 96SP25S Radiator Cap Fits 1979-1980 GMC P1500

API Radiator Cap fits GMC P1500 1979-1980 38TYKK

For 1979-1980 GMC P1500 Radiator Cap API 71921ZG

API Radiator Cap fits GMC P1500 1979-1980 69DDSY