This universal pressure test kit is designed to test and measure the pressure in vehicle cooling systems via the radiator or expansion tank and is intended for trade use. A capless tester, it uses a cone adaptor system to seal and pressurise the cooling system. Cone adaptors may be used to replace both screw and bayonet-type cap fittings. The kit includes a hand pump with a gauge to enable simple, easily controlled testing, with a release pin for depressurisation prior to detachment. There are also four universal cone adaptors and ten radiator cap testing adaptors for use on a wide range of vehicles. The kit is supplied in a sturdy, blow-moulded plastic case.