Gates Radiator Cap Tester Adapter for 1975-1978 GMC C25 4.1L 4.8L 5.0L 5.7L te

Gates Radiator Cap Tester Adapter for 1975-1978 GMC K25 Suburban 4.8L 5.0L jg

Gates Radiator Cap for 1978 GMC C25 Suburban 4.8L 5.0L 5.7L 6.6L 7.4L L6 V8 kd

Gates Radiator Cap Tester Adapter for 1975-1978 GMC K25 4.1L 4.8L 5.0L 5.7L qh

Gates Radiator Cap Tester Adapter for 1975-1978 GMC C25 Suburban 5.7L 5.0L fj

Gates Radiator Cap Tester Adapter for 1975-1978 GMC C35 4.1L 4.8L 5.0L 5.7L wz

Gates Radiator Cap Tester Adapter for 1975-1978 GMC G25 4.1L 4.8L 5.0L 5.7L ky

Gates Radiator Cap for 1978 GMC K25 Suburban 4.8L 5.0L 5.7L 6.6L L6 V8 hk