Description
Cummins 3865312 Coolant Temperature Sensor
Engineered to monitor engine coolant temperature and transmit precise temperature data to the engine control module (ECM). This sensor plays a critical role in managing fuel delivery, engine timing, cooling system operation, and overall engine protection.
Designed to meet Cummins original equipment specifications, the 3865312 temperature sensor uses a thermistor‑based design to accurately measure coolant temperature and convert it into an electrical signal for the ECM. Accurate temperature readings help prevent engine overheating, improve fuel efficiency, and support proper diagnostics in heavy‑duty diesel applications.
Features
Monitors engine coolant temperature in real time
Sends accurate temperature data to the ECM
Supports proper fuel management, timing, and engine protection
Genuine Cummins OEM part for precise fit and reliable operation
Helps prevent overheating and false temperature‑related fault codes
Sensor Type: Thermistor
Common Replacement
Cummins: 3081311, 3613114, 3613604, 3613819, 3803401, 3865323
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