This aftermarket replacement thermostat, part number SPX63077NO, is designed for a wide range of Case IH and International Harvester agricultural tractors. As a crucial component of the engine's cooling system, this thermostat ensures the engine operates at its optimal temperature of 82°C (180°F). By precisely regulating coolant flow, it prevents both overheating and undercooling, which are vital for engine longevity, fuel efficiency, and consistent performance. Engineered as a direct fit replacement, this thermostat cross-references with OEM part numbers 3059676R92, 3059676R91, and 3228046R1, making it a reliable alternative for maintaining your machinery. It is compatible with numerous Case IH and International Harvester models, including popular series such as the 74, 84, 86, 88, and 90 series, as well as various Magnum and MX series tractors. Installing a properly functioning thermostat is essential for protecting your engine from thermal stress, reducing emissions, and ensuring your equipment is ready for demanding tasks. This non-OEM part offers a cost-effective solution without compromising on the critical function of temperature management.