A4031803938S Mercedes-Benz OM 401 Engine Oil Cooler Cover

What does an oil cooler cover do?

This oil cooler cover serves 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, ensuring that engine oil and coolant remain in separate, controlled circuits. By maintaining this separation, the part prevents fluid contamination and ensures efficient heat exchange during heavy-duty operations.

Vehicle and engine compatibility

This component is engineered for use in Mercedes-Benz NG series vehicles, including models such as the 1219, 1419, and 1619. It is specifically compatible with the OM 401 engine series. Whether fitted to tractor units or buses, this part maintains the integrity of the oil cooling assembly under high pressure.

Installation and maintenance

For optimal performance, technicians should inspect the sealing surfaces and sensor connections during installation. This part is built with high-strength components to withstand the thermal stresses typical of heavy commercial vehicle engines. Ensuring a clean mounting surface helps prevent leaks between the oil and coolant circuits.

System integrity

Proper selection of an oil cooler cover is essential for maintaining engine temperature stability and preventing catastrophic fluid mixing.

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 A4031803938S.