The McCormick 6679729A2 is a genuine OEM thermostat designed for optimal engine temperature regulation in various McCormick C, CX, MC, MTX, T, and V series tractors. This essential cooling system component features an 83°C opening temperature, ensuring efficient engine operation and preventing overheating. It is also cross-referenced as an equivalent OEM part for a wide range of Case IH and New Holland agricultural machinery, including JX, MXM, MXU, PUMA, MAXXUM, CS, CVX, MX, T5000, T6000, T7000, TL, TS, TSA, and TVT series.