This high-quality water coolant temperature sensor switch is specially designed to fit Cummins engines and ensure optimal performance. With its reliable sensing capabilities and durable construction, it is the perfect solution for temperature monitoring in engine compartments. The sensor is compatible with a wide range of Cummins engine models and has OE/OEM part number 3967250. It is a humidity sensor that accurately detects changes in temperature and alerts the engine control module to adjust accordingly. Buy with confidence knowing you are getting a top-of-the-line product that will keep your engine running smoothly.