Door Lock Mercedes W907 W910 Rear Left N/S Tailgate Latch Mechanism A9107400000

Door Lock Mercedes W907 W910 Rear Left N/S Tailgate Latch Mechanism is an original component from the Locks and latches group, designed for the rear left section of the vehicle body. It ensures precise door locking, proper cooperation with the handle mechanism, and stable closing, which translates into safe vehicle operation. This used OEM component is a sensible choice for maintenance repairs where structural fit and predictable mechanism performance are essential.

Specifications and technical data

• SKU: A9107400000
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A9107400000
• Substitutable numbers: A9107400000, A 910 740 00 00
• Location on the vehicle: Rear, Left
• Category: Exterior Locks & Lock Hardware

Purpose and vehicle placement

The presented lock is dedicated for installation in the rear left part of the body, in the side doors of Mercedes W907 and W910 series vehicles. Placement in the rear door area on the driver's side requires a specifically profiled housing and the correct lever layout, which is why using the correct lock is crucial for the proper operation of the entire opening and closing mechanism.

The element has been designed for a specific body type, which allows for maintaining factory latch guidance, correct positioning relative to the pillar, and proper engagement with the striker. Thanks to this, after installation, you can achieve stable door closing without the need for additional modifications or adjustments.

Construction and function of the lock mechanism

The lock belongs to the Locks and latches group, responsible for the mechanical locking of the door leaves in the vehicle. Inside the housing, there is a system of pawls, springs, and levers working with rods and handles, which enables:

• secure locking of the door after closing,
• unlocking from the internal or external handle,
• cooperation with the factory vehicle locking system.

The appropriate geometry of the working elements translates into smooth handle movement and repeatable latch operation, which is particularly important in intensively used commercial vehicles.

Benefits of using an original Mercedes lock

Using an original lock in the rear left part of the body allows for maintaining factory door operating parameters. Key advantages include:

• Full structural compatibility – the lock is matched to the specific geometry of the door and pillar, which facilitates installation and adjustment.
• Stable locking – proper engagement with the striker minimizes the risk of play, rattling, and door misalignment.
• Consistency with the existing control system – the mechanism works with the factory solutions used in the given model.

The used element allows for economical repair while maintaining the original design, which is particularly important in fleet and delivery vehicles, where both service cost and operational reliability count.

Condition, fitment, and service application

The offered rear left door lock comes from a Mercedes vehicle and is intended for service applications as a replacement for a damaged or worn mechanism. Thanks to its factory origin, it maintains compatibility with original mounting points and rod routing, which facilitates installation in workshop conditions.

Before purchasing, it is worth comparing the lock configuration with the element removed from the vehicle, paying attention to the placement on the vehicle and the body type. Such an approach reduces the risk of error and speeds up the repair process, especially in the case of intensively used commercial vehicles.

Repair expansion and additional materials

If you are planning a comprehensive repair or upgrade of the door closing zone in your Mercedes and need other elements from the same group, such as locking mechanisms, cylinders, or additional security features, check the available parts in the Mercedes Locks and latches category.

In the case of vehicles with diesel engines, during major service work, it is also worth taking care of the fuel injection system diagnostics – you will find practical information on this topic in the article Diesel injector faults – how to recognize them and what are the risks of neglecting them, which discusses symptoms, consequences, and basic methods of verifying the condition of injectors.