A4031803938 Compatible Oil Cooler Cover — Mercedes-Benz

What does an oil cooler cover do?

This engine oil cooler cover serves as a critical component within the engine cooling system, designed to enclose the oil cooler housing and hold the cooling core bundle securely in its seat. By maintaining a precise seal, it ensures that engine oil and coolant remain in separate, dedicated circuits, preventing dangerous mixing that could lead to engine failure.

Vehicle and engine compatibility

This specific part is engineered for Mercedes-Benz NG series vehicles, including models such as the 1922, 2222, 1422, and 1622 across various configurations like AK, K, S, L, and AF. It is specifically designed to fit the OM 421 engine series, providing a reliable interface for the cooling assembly.

Installation and maintenance

Proper installation of this cover is essential for maintaining correct oil pressure and temperature regulation. Technicians should inspect the sealing surfaces and ensure all bolt loads are applied according to manufacturer specifications to prevent leaks. This component is built from high-strength materials to withstand the thermal stresses of heavy-duty operation.

Selection guidance

When replacing the cover, it is important to verify that all sensor connections are secure and that the unit is compatible with your specific engine configuration to ensure long-term reliability.

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.