1987 Chevrolet R20 equipped with 7.4L V8 Gas OHV, 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.8L L6 Gas OHV, 4.3L V6 Gas OHV
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Radiator Cap/Cooling System Tester Adapter System adapter on tester
1987 Chevrolet R20 equipped with 7.4L V8 Gas OHV, 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.8L L6 Gas OHV, 4.3L V6 Gas OHV
Radiator Cap/Cooling System Tester Adapter System adapter on tester