Fuel Tank Tension Strap Mercedes W639 Holder Bracket Support A6394700640

Fuel Tank Tension Strap Mercedes W639 Holder Bracket Support is a specialized component from the Fuel filler caps and accessories category, designed for the stable mounting of the fuel tank within the vehicle's structure. A properly selected bracket ensures secure support for the tank, reduces unwanted vibrations, and supports the correct operation of the entire fuel system in a Mercedes.

Specifications and technical data

• SKU: A6394700640
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6394700640
• Substitutable numbers: A6394700640, A 639 470 06 40, KZ
• Category: Fuel Flaps & Components

Purpose and function of the tank bracket

The tank mounting bracket in a Mercedes V-Class W639 generation is responsible for the mechanical support and immobilization of the fuel tank relative to the body. A correctly selected component:

• maintains the fuel tank in its designed operating position,
• limits lateral and longitudinal movement of the tank while driving,
• reduces loads acting on the fuel system connections, lines, and equipment,
• supports the durability of mounting elements and adjacent chassis components.

As a result, the bracket is a crucial element of operational safety – both in terms of protecting the tank and ensuring the stability of the entire fuel system.

Compatibility and OEM identification

The presented bracket is an original component from the Mercedes brand, designed specifically for the W639 model structure. This means full compatibility with factory mounting points and adherence to the chassis geometry specified by the manufacturer.

Part selection is facilitated by the OEM part number assigned to this component (available in the technical specifications section), as well as related interchangeable numbers, which allow for verifying compatibility with other versions of this bracket. In practice, this enables the safe replacement of a worn or corroded mount with a component of confirmed compatibility.

Design characteristics and functional benefits

The original Fuel Tank Tension Strap Mercedes W639 Holder Bracket Support was designed to handle loads resulting from the weight of the fuel tank and dynamic forces acting during driving. The bracket's design ensures:

• stable support for the fuel tank under road conditions,
• appropriate rigidity while maintaining controlled flexibility of the mount,
• proper distribution of forces into the body structure,
• consistency with the factory mounting system and chassis covers.

By using an original solution, compliance with the manufacturer's design assumptions is maintained, which minimizes the risk of stress in unforeseen areas and reduces the possibility of damage to the fuel tank or lines.

Condition, service application, and installation

The item is offered in used condition, which allows for an economical repair of the tank mounting system while maintaining the original manufacturer's specifications. This is a practical solution in situations where the factory bracket has suffered from corrosion, mechanical deformation, or other operational damage.

The tank mounting bracket is particularly suitable for the following service applications:

• replacement of corroded or cracked fuel tank mounts,
• restoring factory mounting geometry after chassis bodywork repairs,
• comprehensive renovation of the fuel system in a Mercedes W639.

Due to its factory origin, installation is performed using the original mounting points, which facilitates the mechanic's work and allows for maintaining the tank and equipment routing lines as intended by the manufacturer.

Technical support and additional materials

To better understand the impact of proper tank mounting on the durability of the entire fuel system, it is worth reading an article discussing diagnostics, selection by OEM numbers, and the operation of key components such as injectors, pumps, and the fuel tank: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

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 filler covers, mounting elements, or accessory filler protections, check the available parts in the Mercedes fuel filler caps and accessories category.