Mercedes-Benz M-Class ML W164 Front Left N/S Wheel Arch Bracket A1643310940

Mercedes-Benz M-Class ML W164 Front Left N/S Wheel Arch Bracket is an original structural component of the safety system, designed for installation in the front left part of the bodywork. It ensures stable, precise seat belt mounting, which translates into the correct operation of the driver protection system and compliance with the factory body geometry. By using an original bracket, you maintain the structural integrity of the vehicle and ensure proper load distribution during operation.

Specifications and technical data

• SKU: A1643310940
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1643310940
• Substitutable numbers: A1643310940, A 164 331 09 40
• Location on the vehicle: Front, Left
• Category: Other Exterior Parts & Accessories

Purpose and vehicle placement

The presented bracket is a component mounted in the front area on the driver's side, where it is responsible for the stable seating of the seat belt in the bodywork. Precise fitment to the W164 model structure allows for maintaining the correct position of the mounting point, which is important for both comfort and the proper operation of the passive safety system.

Placement in the front-left area ensures that the component works with factory mounting points and does not require interference with the body structure, provided the vehicle has not been previously modified in this area.

Technical and functional characteristics

The bracket has been designed as a structural part dedicated to a specific Mercedes platform, which ensures:

• preservation of the factory geometry of the seat belt mounting point,
• proper transfer of forces acting on the belt during braking and collisions,
• compatibility with original bolts and fasteners,
• consistency with other safety system components.

The original origin translates into predictable behavior of the component under operating conditions and easier identification in service documentation.

Component condition and service application

The product comes from the used parts segment, which allows for economical vehicle repair while maintaining the original design. This type of bracket is particularly useful for:

• post-accident repairs in the front area on the driver's side,
• recreating factory seat belt mounting points,
• servicing vehicles where the original component has been damaged or corroded.

Using an original bracket instead of aftermarket replacements facilitates the work of the body shop and limits the need for "on-car" adjustments.

Benefits of using the original bracket

Choosing this seat belt mounting bracket for the Mercedes W164 is a solution that supports both safety and technically correct repair:

• Factory fitment – a component designed for a specific body structure, with no need for modifications.
• Consistency with the safety system – maintaining the correct position of the seat belt relative to the seat and bodywork.
• Support for proper post-accident repair – easier reconstruction of the original structure in the mounting area.

This approach is particularly important in vehicles where compliance with manufacturer documentation and predictable structural behavior in emergency situations are essential.

If you are planning a comprehensive repair or modernization of the body area in your Mercedes and need other elements from the same group, such as brackets, holders, or structural mounts, check the available parts in the Other Mercedes category.

Technical support and parts knowledge

When selecting structural elements and safety components, it is worth relying on reliable technical knowledge and the experience of workshops specializing in a given brand. To compare how manufacturers approach the design of powertrain and chassis systems, you can refer to our guide material – check the article Audi RS vs other models – what is hidden under the hood and chassis?, which shows how different brands approach performance and construction issues.

If you want to better understand the specifics of the second-hand parts market and consciously choose components for your car's repair, the guide Used car parts: Myths and facts you need to know, explaining the practical aspects of using used components in professional service, will also be helpful.