A4031803938S Oil Cooler Cover for Mercedes-Benz OH

What does an oil cooler cover do?

This engine oil cooler cover plays a vital role in maintaining the thermal management system of the engine. It is designed to enclose the oil cooler housing, holding the cooling core bundle securely in its seat while keeping engine oil and coolant in separate, isolated circuits. By providing a reliable seal, it prevents cross-contamination and ensures stable oil temperatures during heavy-duty operations.

Vehicle and engine compatibility

This specific component is designed for Mercedes-Benz OH trucks, including models such as the 1628, 1628 L, 1625, and 1625 L. It is engineered specifically to match the requirements of the OM 422 engine series. This ensures that the oil transfer channels and sealing surfaces align perfectly with the engine block assembly.

Installation and maintenance

For workshop technicians, proper installation of this cover is critical to prevent leaks between the lubrication and cooling systems. When replacing the cover, it is essential to inspect the seating surfaces and ensure that all connections, including sensor ports if equipped, are seated correctly. Regular inspection of the cover and its seals can prevent overheating or oil loss in heavy commercial vehicle fleets.

Selection guidance

Selecting a high-strength component ensures that the bolt load and sealing pressure remain consistent even under high operating temperatures. For correct fitment, always verify the engine code and mounting configuration against the existing unit on the vehicle.

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.