Part Name: Water Temperature Sensor Part Number(s): 239-9957 2399957, 4903489 Application/ Compatibility: Suitable replacement for Cummins 4903489 and Caterpillar 239-9957 sensors used in heavy-duty engines found in construction machinery, trucks, and industrial generators Function: Measures coolant temperature and relays real-time data to the engine control module or dashboard to ensure safe engine operating temperatures and prevent overheating Condition: Brand New / OEM Standard Replacement Machine Type: Excavator / Generator / Heavy-Duty Truck (Cummins / Caterpillar) Technical Specifications: Type: Threaded coolant temperature sensor Material: Brass sensor body with high-temp resistant connector Thread Size: 3/8"-18 NPT Temperature Range: -40°C to 135°C Voltage: 12V / 24V compatible Connector Type: 2-pin Weight: Approx. 0.09 kg Category: Cooling System Components Shipping: Global Shipping Available | Delivery in 3–5 Days