Mercedes W639 W447 Wheel Socket Tool Nut Brace A6395810401

Mercedes W639 W447 Wheel Bolt Cap A6395810401 is an original part from the Wheel Locks, Bolts, Nuts, and Studs group, designed for servicing wheel bolts in Mercedes W639 and W447 series vehicles. The precisely manufactured cap ensures secure torque transfer and safe handling of wheel fastenings, contributing to stable vehicle operation.

Specifications and technical data

• SKU: A6395810401-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6395810401
• Substitutable numbers: A6395810401, A 639 581 04 01, A6395810101, A 639 581 01 01
• Category: Wheel Nuts, Bolts & Studs

Cap Purpose and Function

The wheel bolt cap dedicated to Mercedes W639 and W447 models is designed as a working element that interacts with the factory wheel rim fastening system. It ensures proper tool fit to the bolt head, minimizing the risk of socket damage and facilitating controlled wheel removal and installation.

Thanks to its manufacturer-standard design, the cap allows for:

• secure tightening and loosening of wheel bolts in workshop and service conditions,
• maintaining proper contact with the bolt's working surface,
• reducing tool slippage and associated damage.

Compatibility and Fit for Mercedes W639 / W447

The cap in question has been prepared for use in Mercedes commercial and passenger-commercial vehicles of the W639 and W447 series. The use of an original solution from the Wheel Locks, Bolts, Nuts, and Studs group ensures consistency with the factory wheel fastening system and predictable performance during operation.

This part is particularly useful in situations where a worn or damaged working cap needs replacement, or when equipping a service station with components compliant with the vehicle manufacturer's requirements.

Performance Characteristics and Advantages

The wheel bolt cap in this version offers a range of practical benefits in daily operation:

• precise fit to the bolt profile, facilitating work with tightly fastened elements,
• stable load transfer when using a wrench or impact tool in workshop conditions,
• possibility of use as part of service equipment dedicated to a specific vehicle platform.

As an original Mercedes part, the cap aligns with the manufacturer's quality standards, promoting repeatable and predictable results during wheel servicing.

Product Condition and Service Application

The offered cap is a used part, making it an attractive solution for users and workshops seeking parts with proven functionality at a favorable cost-to-quality ratio. It can be used both as a replacement for a worn part in the vehicle's equipment and as an additional working tool in a professional service center handling the Mercedes W639 and W447 fleet.

It is suitable for typical service tasks such as seasonal wheel changes, tire condition checks, or brake system work, wherever secure access to wheel rim fastening bolts is required.

Expanding Wheel Fastening Components for Mercedes

If you are planning a comprehensive repair or upgrade of the wheel fastening area in your Mercedes and need other parts from the same group, such as wheel bolts, nuts, or fastening studs, check the available parts in the Mercedes Wheel Locks, Bolts, Nuts, and Studs category.

For users interested in a broader service context of the vehicle, including the impact of wheel fastening condition on suspension operation and driving comfort, a guide describing key drivetrain components may be helpful – you can find it in the article Suspension System – A Comprehensive Guide to Shock Absorbers, Control Arms, and Stabilizers.