The Case IH 9971580 is an authentic OEM thermostat designed to precisely regulate engine operating temperature in a wide range of Case IH and New Holland agricultural machinery. This critical component ensures efficient cooling system performance, preventing overheating and maintaining engine longevity. With an opening temperature of 82°C, it provides reliable thermal management for various tractor models including JX, Farmall, Maxxum, Puma, and Quantum series, as well as numerous New Holland T-series and TD-series tractors.