403 180 3938 Mercedes-Benz OM 421 Oil Cooler Cover

What does an oil cooler cover do?

This engine oil cooler cover serves as a critical sealing component within the engine's thermal management system. It is engineered to enclose the oil cooler housing, ensuring that the cooling core bundle remains securely seated and that engine oil and coolant remain in separate, pressurized circuits.

Compatible Mercedes-Benz models and engines

This specific part is designed for use in Mercedes-Benz NG vehicles, including models such as the 1922, 2222, 1422, 1622, and 2422 series. It is specifically optimized for engines utilizing the OM 421 configuration, providing a reliable interface between the engine block and the cooling assembly.

Installation and maintenance guidance

Maintenance of this component is vital for preventing coolant contamination in the oil circuit. When inspecting the unit, technicians should check all sealing surfaces and connection points to ensure no leaks occur under high operating pressures. This part is manufactured using heavy-duty grade materials to withstand the thermal stresses inherent in heavy commercial vehicle engines.

System reliability and selection

Selecting the correct cover ensures that oil transfer channels and sensor connections remain perfectly aligned during installation.

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 4031803938.