1YMJ5 MULTI VEHICLE RADIATOR CAP LEAK TEST ADAPTER. We also have these available in lots of 6 if you are looking for a larger quantity. From the Grainger.com web site: Technical Specs Item Multi-vehicle Radiator Cap Leak Test Adapter Color/Finish Red Plastic For Use With Acura, Chevrolet, Chrysler, GEO, Ford, Honda, Lexus, Mazda, Mitsubishi, Toyota 8D4