Gates Radiator Cap Tester Adapter for 1989-1991 Chevrolet R3500 5.7L 6.2L sm

Gates Radiator Cap Tester Adapter for 1989-1991 Chevrolet V3500 6.2L 5.7L mm

Gates Radiator Cap Tester Adapter for 1987-1991 GMC R3500 5.7L 6.2L 7.4L V8 us

Gates Radiator Cap Tester Adapter for 1989-1991 Chevrolet V3500 5.7L 6.2L ew

Gates Radiator Cap Tester Adapter for 1987-1991 GMC R3500 4.8L 5.7L 6.2L uw

Gates Radiator Cap Tester Adapter for 1975-1989 Chevrolet P20 6.2L 5.7L 7.4L ri

Gates Radiator Cap Tester Adapter for 1989 Chevrolet R2500 6.2L 5.7L 7.4L V8 da

Gates Radiator Cap for 1989-1991 Chevrolet R3500 5.7L 6.2L 7.4L V8 vq