A comprehensive cooling system pressure testing kit for universal use. Locates system leaks from header/expansion tanks and fittings, head gasket, radiator core, heater matrix, water pump, hoses, pipes, etc. 25 pieces, including 17 individually sized threaded adaptors, pressure testing pump with gauge, 2 connectors for pressure testing bayonet style caps and an adaptor cap wrench.Adaptors have quick-release couplings and pump is fitted with large, easy to read dial clearly marked in both psi & bar. Thermometer included for temperature measurement of radiator core, expansion tanks etc. Also checks the leakage on original radiator cap.