Gates Radiator Cap Tester Adapter for 1987-1991 GMC V3500 4.8L 5.7L 6.2L ds

Gates Radiator Cap Tester Adapter for 1987-1991 GMC R2500 Suburban 5.7L 6.2L nm

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

Gates Radiator Cap Tester Adapter for 1987-1988 Chevrolet R30 4.8L 5.7L 6.2L dq

Gates Radiator Cap Tester Adapter for 1987 Chevrolet V20 4.8L 5.7L 6.2L L6 gc

Gates Radiator Cap Tester Adapter for 1979-1989 GMC P2500 4.8L 5.7L 6.2L L6 qe

Gates Radiator Cap Tester Adapter for 1987-1991 GMC V1500 Suburban 5.7L 6.2L zd

Gates Radiator Cap Tester Adapter for 1987-1991 GMC V2500 Suburban 5.7L 6.2L hs