Unique design allows you to test the cooling system on a running engine to check for leaks or excessive pressure when system is hot Unique radiator adapter will work with most motorcycle, ATV and UTV applications equipped with a 30 mm spout Use with a common hand pump to pressurize a non-running system (pump not included) Remote, accurate, easy to read gauge makes readings and diagnosis easy Tests radiator and radiator cap for leak and correct pressure release limit Pressurize motorcycle or ATV cooling system to check for leaks. TOOL COOLING TESTER TYPEA