For 1987 GMC V1500 Radiator Cap 21552HBPW Safety Lever -- Relief pressure 16 lb

For 1987 GMC V1500 Radiator Cap 48683PCXT Standard -- Relief pressure 16 lb

For 1987 GMC V1500 Radiator Cap 51775DFTK Standard -- Relief pressure 16 lb

For 1958 GMC PM151 Radiator Cap 34783XMRR Safety Lever -- Relief pressure 7 lb

For 1955 GMC PM250 Radiator Cap 55621DNBJ Safety Lever -- Relief pressure 4 lb

For 1987 GMC R1500 Radiator Cap 79788QNBW Safety Lever -- Relief pressure 16 lb

For 1987 GMC R1500 Radiator Cap 15919DZDR Safety Lever -- Relief pressure 16 lb

For 1987 GMC V2500 Radiator Cap 32541SJNM Safety Lever -- Relief pressure 16 lb