Fuel Filter Pump Mercedes W204 W212 OM642 Diesel Pipe Line Hose A6420706181

Fuel Filter Pump Mercedes W204 W212 OM642 Diesel Pipe Line Hose is an original fuel system component designed for OM642 diesel engines in Mercedes C-Class W204 and E-Class W212 models. As part of the Lines, hoses and pipes group, it is responsible for the stable flow of diesel fuel between system components, which translates into smooth engine operation. Using an OEM component allows you to maintain the factory engine performance characteristics and reduce the risk of leaks in the fuel circuit.

Specifications and technical data

• SKU: A6420706181
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420706181
• Substitutable numbers: A6420706181, A 642 070 61 81, A6420702281, A 642 070 22 81
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel system

The described fuel line is designed specifically for Diesel OM642 engines used in Mercedes W204 and W212 models. Its task is to safely transport fuel at the appropriate pressure between fuel system components, while maintaining proper tightness and resistance to vibrations and the operating temperatures of the diesel engine.

Choosing a line dedicated to a specific engine family ensures:

• proper routing in the engine compartment,
• the correct fuel flow diameter,
• compatibility with factory connectors and mounts.

Advantages of using an original fuel line

Choosing an original fuel line for a Mercedes with a diesel engine is a solution that reduces the risk of problems typical of aftermarket replacements of uncertain origin. The component from the Lines, hoses and pipes group designed by the vehicle manufacturer ensures:

• consistency with the factory fuel system design,
• adequate resistance to operating pressure in the diesel engine,
• a stable connection with other system components.

As a result, the fuel line helps maintain smooth engine operation, reduces the risk of air ingress and leaks, and supports the maintenance of starting parameters and the dynamics of the OM642 unit.

Component condition and installation aspects

The fuel line is offered as a used part, which allows for an economical repair while retaining an OEM component. Before installation, standard visual verification and inspection of the connectors for tightness are recommended, in accordance with service procedures for fuel systems in diesel engines.

When replacing the fuel line, it is worth paying attention to:

• proper routing along factory brackets and mounts,
• cleanliness of the connectors before reconnecting to the system,
• bleeding the fuel system after completing the work.

Part selection and compatibility

To correctly select a fuel line for a specific Mercedes W204 or W212 with an OM642 engine, it is worth using the OEM part number and interchangeable numbers visible in the technical specification. This helps avoid ordering errors and ensures full compatibility with the fuel system configuration used in the vehicle.

In case of doubts regarding fitment, it is helpful to compare the shape, length, and type of connectors with the element currently installed in the vehicle, as well as verification by VIN in the manufacturer's catalog.

If you are planning a comprehensive repair or upgrade of the fuel system area in your Mercedes and need other elements from the same group, such as flexible supply lines, return hoses, or rigid fuel pipes, check the available parts in the Mercedes lines, hoses and pipes category.

If you are considering a wider range of service work after a collision or bodywork intervention, and want to better plan the use of used OEM components, the guide article Bodywork and chassis – post-accident repairs using dismantled parts may be helpful, where a practical approach to selecting and installing aftermarket components is discussed.