Mercedes W639 Sliding Door Lock Actuator Latch Catch Side Right O/S A6397300935

Mercedes W639 Sliding Door Lock Actuator Latch Catch Side Right O/S is an original component from the Locks and Latches category, designed for the right side of the body in Mercedes W639 series models. It enables secure locking of the sliding door, ensuring stable mechanism operation and proper integration with the vehicle's factory locking system.

Specifications and technical data

• SKU: A6397300935
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6397300935
• Substitutable numbers: A6397300935, A 639 730 09 35, KD
• Location on the vehicle: Right
• Category: Exterior Locks & Lock Hardware

Purpose and function of the lock

The presented lock is dedicated to the sliding door on the right side of the vehicle, which guarantees a proper fit with the guides, catches, and other structural elements. It is responsible for the mechanical locking and unlocking of the door, as well as for the correct closing of the door panel against the body, which is essential for the vehicle's sealing and operational safety.

The component has been designed to work with the factory Mercedes locking system, ensuring consistent operation with other locks and the central locking system.

Construction and fitment for Mercedes W639

The right-side sliding door lock in the Mercedes W639 is based on a robust lever-ratchet mechanism, adapted for the frequent opening and closing characteristic of commercial vehicles. The design is intended for installation in factory mounting points, which facilitates servicing and reduces the time required for replacement.

Thanks to the preservation of the original mounting geometry and the appropriate profile of the catches, the lock works with existing sliding door guides and hinges, minimizing the risk of improper closing, play, or misalignment of the door panel.

Characteristics of the used component

The offered lock comes from disassembly and is a used part, which allows for an economical vehicle repair while maintaining the original manufacturer's specifications. This type of solution is particularly beneficial for older Mercedes W639 models, where both technical compliance and reasonable service costs are important.

A used lock, sourced from the same model line, ensures proper fitment with the bodywork and compatibility with factory rods, cables, and any central locking actuators, without the need for installation modifications.

Benefits of using an original lock

• Maintaining the factory functionality of the sliding door on the right side of the vehicle.
• Better fitment to the body structure compared to non-original replacements.
• Possibility of quick replacement of a damaged lock without interfering with the door structure.
• Consistent operation with the existing locking and control system in the Mercedes W639.

Expansion of the locking system in the Mercedes

If you are planning a comprehensive repair or upgrade of the side sliding door area in your Mercedes and need other components from the same group, such as locking mechanisms, catches, or additional locking elements, check out the available parts in the Mercedes Locks and Latches category.

Technical support and additional knowledge

When planning broader work on the drivetrain or modifications related to driving characteristics, it is worth reaching for specialized knowledge. Practical information on selecting gear ratios, drive axles, and differentials can be found in the article Dismantled drive axles and differentials – how to choose gear ratios for your driving style, which helps to better understand the relationships between component configuration and vehicle operation.