Gates Radiator Cap Tester Adapter for 1987 GMC V1500 6.2L 5.7L 5.0L V8 4.3L zp

Gates Radiator Cap Tester Adapter for 1987 GMC R1500 4.3L 5.0L 5.7L 6.2L V6 up

Gates Radiator Cap Tester Adapter for 1987 Chevrolet V10 6.2L 5.7L 5.0L V8 jh

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

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

Gates Radiator Cap for 1987 GMC R1500 4.3L 5.0L 5.7L 6.2L V6 V8 Antifreeze rb

Gates Radiator Cap Tester Adapter for 1996-2002 GMC Savana 1500 5.7L 5.0L V8 np

Gates Radiator Cap for 1987 GMC R1500 4.3L 5.0L 5.7L 6.2L V6 V8 Antifreeze dy