For 1987 GMC R1500 Radiator Cap 63336BW Radiator Cap -- Pressure Rating 16 psi

1.1 Bar Thermostatic Radiator Cap PSI 13 Pressure Rating with Temperature Gau A

1.1 Bar Thermostatic Cap Radiator 13 PSI Pressure Rating with Temperature Gauge

1.3 Bar Thermostatic Radiator Cap 13 PSI Pressure Rating with Temperature Gauge

1.1 Bar Thermostatic Radiator Cap 13 PSI Pressure Rating with Temperature Gauge

1.1 Bar Thermostatic Radiator Cap 13 PSI with Pressure Rating Temperature Gauge

For 1987 GMC R1500 Radiator Cap 35768RTGM Standard -- Relief pressure 16 lb

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