The Cummins 3934373 Genuine 180 Degree Coolant Thermostat is an essential component designed to regulate your engine's temperature, ensuring it operates at an optimal performance level. Manufactured by Cummins, a trusted name in the engine industry, this thermostat opens at 180 degrees Fahrenheit, which is critical for maintaining the engine's efficiency and preventing overheating. It is specifically engineered for compatibility with various Cummins engine models, providing a precise fit and reliable operation. With its durable construction and genuine Cummins quality, this coolant thermostat is an ideal choice for maintaining or enhancing your engine's cooling system's effectiveness.