Cummins 4358810 Oil Pressure Sensor Assembly

The Cummins 4358810 is an engine oil pressure sensor designed for heavy-duty diesel applications. It provides real-time oil pressure data to the engine control module (ECM) to ensure proper lubrication system operation and trigger low-pressure protection strategies. This sensor is a direct replacement for Cummins part numbers 4921517, 5491435, 4087991, 4921744, 2872784, and 9045050. Constructed with a brass or stainless steel housing and a 3-pin electrical connector, the sensor features a standardized thread interface for direct installation into the engine block oil gallery. It operates on a 5V reference voltage from the ECM, outputting a variable voltage signal proportional to oil pressure. The component is calibrated to meet OEM specifications for Cummins EPA13 8.9L ISC/ISL and ISX15 platforms, ensuring accurate readings across the operating temperature range.