Mercedes-Benz Sprinter W906 Fuel Filler Cap Tank Cap Cover Black A0004703105

Visual condition of the part 

The product shows signs of use visible in the photos. 

Mercedes-Benz Sprinter W906 Fuel Filler Cap Tank Cap Cover Black is an original component from the Fuel filler flaps and caps group, designed for diesel fuel systems. Its robust construction and adherence to manufacturer standards ensure a tight seal of the filler neck and stable operation of the fuel system. The dark, black finish blends well with the factory body styling.

Specifications and technical data

• SKU: A0004704605
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0004704605
• Substitutable numbers: A0004704605, A 000 470 46 05, A0004703105, A 000 470 31 05
• Fuel type: Diesel
• Color: Black
• Category: Fuel Tank Caps

Purpose and technical function

The fuel filler cap in Mercedes W906 series models is responsible for the controlled, secure closure of the fuel tank neck in diesel-powered vehicles. A properly selected component reduces the risk of contaminants entering the system, helps maintain the correct pressure in the tank, and supports the proper operation of the venting system. As a result, the diesel fuel system maintains stable operating parameters under typical operating conditions.

Performance parameters and fitment

The offered cap is a part designed for Mercedes vehicles, which ensures the correct thread profile, diameter, and sealing geometry relative to the factory filler neck. The construction is adapted for diesel fuel, which is important for the material's resistance to long-term contact with diesel oil and additives. The black finish facilitates aesthetic integration with the factory filler housing and body elements.

Condition of the component and installation aspects

The product is offered as a used part, allowing for an economical replacement of a damaged or missing cap while maintaining the original manufacturer's specifications. The cap is ready for installation in place of the factory component, without the need for modifying the filler neck or additional alterations. In practice, this means quick service and reduced vehicle downtime, which is particularly important in fleet and delivery applications.

Benefits of using an original fuel filler cap

Using an original fuel filler cap in a diesel system translates into several significant operational benefits:

• maintaining filler tightness and reducing fuel evaporation,
• protection against dirt and moisture entering the tank,
• maintaining the correct operating conditions of the fuel system,
• visual consistency with the bodywork thanks to the black color scheme.

For commercial vehicles, where predictability and repeatability of operating parameters are essential, such a choice of component helps reduce the risk of unplanned downtime related to fuel system issues.

Part selection and technical knowledge

When selecting a fuel filler cap for a Mercedes W906, it is crucial to verify compatibility with the diesel fuel system and match it to the specific vehicle configuration. It is helpful to use the OEM part number and interchangeable numbers, which allow for precise identification of the correct component in the manufacturer's catalogs and parts selection systems. This minimizes the risk of purchasing a component with a different sealing profile or a different manufacturing standard.

To better understand the impact of the cap on the operation of the entire fuel system, it is worth consulting specialized technical materials. An extensive discussion on the construction and operation of the fuel system can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which describes, among other things, diagnostics, selection of components by OEM numbers, and practical service tips.

If you are planning a comprehensive repair or upgrade of the fuel filler area in your Mercedes and need other elements from the same group, such as additional caps, flaps, or filler covers, check the available parts in the Mercedes fuel filler flaps and caps category.