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

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

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

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

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

Gates Radiator Cap Tester Adapter for 1975-1989 Chevrolet P20 4.8L 5.7L 6.2L fp

MotoRad Radiator Cap Adapter for 1989-1991 Chevrolet R3500 5.7L 6.2L 7.4L V8 qw

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