Stant OE equivalent thermostats benefit from OE supplier experience that results in a match in fit and function to the original specifications when a replacement part is needed. Technologically advanced designs use bleed notches, check valves, and other methods to assist in releasing air from the cooling system to ensure optimum performance and efficiency. Quality construction ensures exact fit and a long, trouble-free life. Stainless steel pistons, bridges, mounting flanges, and springs add strength and durability. ELAC heat motor provides consistent response to the vehicle's cooling system needs. 1 Year Warranty. It's no wonder Stant is the original equipment choice of many automakers. So why take chances with anything less? Buy the world's best engineered thermostats from Stant. Stant is a world leader in the development and manufacture of fuel and cooling system products. Founded in Connersville, Indiana by George Stant in 1898, today the company is still based in Connersville, but is now owned by HIG Capital LLC. Stant designs and produces a variety of consumer products including thermostats, radiator and coolant reservoir caps. The majority of Stant consumer products are manufactured in the USA in TS16949/ISO14001 certified facilities.