Mercedes W906 Fuel Filter Housing Bracket Retainer Mount A6420904852

The Mercedes W906 Fuel Filter Housing is an original part of the fuel system, designed for use in Mercedes vehicles of the W906 series. The robust construction of the housing ensures stable seating of the filter element and a leak-proof fuel flow, which translates to safe and predictable engine operation.

Specifications and technical data

• SKU: A6420904852
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420904852
• Substitutable numbers: A6420904852, A 642 090 48 52
• Category: Fuel Filters

Purpose and Function in the Fuel System

The fuel filter housing in the Mercedes W906 is responsible for the mechanical protection of the filter element and maintaining the proper seal of the entire module. A correctly selected housing minimizes the risk of contaminants entering the injection system, which is particularly important in modern high-pressure diesel engines.

This component is an integral part of the Fuel Filters category, working in conjunction with fuel lines, sensors, and the supply pump. Proper housing selection according to manufacturer designations allows for the preservation of original fuel flow and pressure parameters.

Construction and Technical Features of the Housing

The fuel filter housing for the Mercedes W906 has been designed as a precision body that ensures:

• stable mounting of the filter element in the position intended by the manufacturer,
• a leak-proof connection to the vehicle's fuel system,
• proper channeling of fuel flow through the filtering section,
• the possibility of service replacement of the filter element without interfering with other system components.

By using the original housing, compatibility with factory connectors and Mercedes W906 fuel system accessories is maintained, reducing the risk of leaks and bleeding issues.

Selection by Numbers and Compatibility with Mercedes W906

The presented fuel filter housing is a component intended for Mercedes vehicles, and its identification is based on the OEM part number and related replacement numbers. Selection by these designations allows for verification of compatibility with a specific engine version and model year of the Mercedes W906, which is crucial for correct installation and subsequent operation.

In case of doubts regarding the fit for a particular vehicle, it is advisable to use the VIN number and service documentation to ensure that the housing matches the factory configuration of the fuel system.

Condition, Installation, and Operation

The fuel filter housing is offered in a used condition, meaning it comes from a dismantled vehicle and its parameters are a result of previous use. Before installation, it is recommended to thoroughly clean the sealing surfaces and inspect the fuel connection ports to ensure proper sealing after the system is reassembled.

When replacing the housing, it is advisable to:

• check the condition of the fuel lines and hose clamps,
• use a new fuel filter element that complies with the manufacturer's recommendations,
• properly bleed the system after the initial engine start.

This approach helps maintain stable operation of the injection system and reduces the risk of starting problems or power loss due to blockages or leaks.

Technical Support and Additional Information

To better understand the role of the fuel filter housing in the entire fuel supply system, it is worth consulting a guide describing the diagnostics and operation of the fuel supply system, injectors, and pumps – this is discussed in detail in the article Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair, where you will find practical tips on selecting parts by OEM numbers and the principles of proper repair.

If you are planning a comprehensive repair or upgrade of the fuel supply area in your Mercedes and need other components from the same group, such as filter elements, fuel lines, or pressure sensors, check the available parts in the Mercedes Fuel Filters category.