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

Gates Radiator Cap Tester Adapter for 1987-1989 GMC R2500 6.2L 5.7L 5.0L wd

Gates Radiator Cap Tester Adapter for 1987-1991 GMC R1500 Suburban 6.2L 5.7L tf

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

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

Gates Radiator Cap Tester Adapter for 1987-1991 GMC V3500 6.2L 5.7L 7.4L V8 hw

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

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