Motion Pro is dedicated to producing the most versatile, unique and durable products for professional and home use. Motion Pro tools are designed to be simple to use, yet durable enough to withstand the harshest conditions. One of their goals is to offer tools of convenience. Do it right the first time with Motion Pro Tools. Pressurize motorcycle or ATV cooling system to check for leaks. Tests radiator and radiator cap for leak and correct pressure release limit. Use with a common hand pump to pressurize a non-running system (pump NOT included). Unique design allows you to test the cooling system on a running engine to check for leaks or excessive pressure when system is hot. Remote, accurate, easy to read gauge makes readings and diagnosis easy. Unique radiator adapter will work with most motorcycle, ATV and UTV applications equipped with a 30 mm spout. Available in two sizes: