OE Exact Thermostat Gates only partners with prime OE thermostat manufacturers to provide OE Exact or OE Type construction. OE Type - Quality controlled factory calibration assures accuracy of opening and closing regardless of pressure changes. Matches the OEM product fit function and design. Features including jiggle pins and check valves for air venting seals and gaskets make these thermostats equivalent to the original equipment parts. OE-exact designed for customers that demand the exact OEM thermostat as a replacement product.