The MADDOX® Master Diesel Compression Test Kit includes specialized adapters for testing a wide range of diesel truck, car and tractor engines. This professional kit is ideal for checking engine compression and diagnosing problems with valves, rings, carbon buildup and late timing. Includes a full range of adapters to fit diesel engines from every major manufacturer: Cummings, Dodge, Ford, GM, GMC, Hino, Hummer, International, Isuzu, Land Rover, Navistar, Nissan, Sprinter, Audi, BMW, Jeep, Lincoln, Mazda, Mercedes-Benz, Mitsubishi, Peugeot, Toyota, and Volvo