A4031803938 Mercedes-Benz OM 401 Oil Cooler Cover

What does an oil cooler cover do?

This oil cooler cover functions as a critical component within the engine cooling system, specifically designed to enclose the oil cooler housing. It holds the cooling core bundle securely in its seat on the engine block, ensuring that the oil and coolant remain in separate, pressurized circuits. By maintaining this separation and managing bolt load across sealing surfaces, this part plays a vital role in protecting the engine from thermal stress.

Vehicle and engine compatibility

This specific component is compatible with Mercedes-Benz O 303 vehicles equipped with OM 401 (RAM-Air) or OM 401 engines. It serves as a reliable replacement for heavy commercial vehicle applications where precise fitment is required to prevent leaks and maintain optimal oil temperature.

Installation and maintenance guidance

For workshop technicians, ensuring the sealing surfaces are clean during installation is vital to prevent fluid mixing. This part is designed to withstand heavy-duty operating temperatures and pressures characteristic of the OM 401 engine series. Always verify that the sensor connections and mounting points align with the existing engine configuration before installation.

Troubleshooting and inspection

Regular inspection of the oil cooler cover for signs of seepage or bolt tension loss can prevent more significant engine issues. Selecting a part that matches the specific engine requirements ensures long-term reliability in heavy commercial vehicle fleets.

OE cross-reference

0101 049 (Oil Cooler Cover) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number A4031803938.