Verifies that thermostat is operating correctly. Use shop air to pressurize system. No more hand pumping.
Individual adapters avialiable.
Set contains standard adapter, pressure probe assembly, temperature probe and pressure relief probe in a blow molded case. By adding an optional accessory package this becomes a brake bleeder, ignition system amd emissions central system tester. Fits all popular trucks having the larger diameter filler neck. Simply engage the pliers over the cap, press down, rotate and release. Tool fits all standard radiator caps.