Ford Transit Custom Rear Door Trunk Lock Mechanism Left N/S BK21-V431A03-AN

Ford Transit Custom Rear Left Door Lock Mechanism BK21-V431A03-AN is an original part from the Locks and Latches group, designed for the rear left door panel in a van body. The mechanism ensures secure locking, proper cooperation with the handle, and stable closing, which translates to safe use of the cargo space.

Specifications and technical data

• SKU: BK21-V431A03-AN
• Mark: Ford
• Condition: Used
• OEM Part Number: BK21-V431A03-AN
• Substitutable numbers: BK21-V431A03-AN, BK21V431A03AN, 2319658
• Location on the vehicle: Rear, Left
• Part type: Door Lock
• Category: Exterior Locks & Lock Hardware

Purpose and Function of the Lock Mechanism

The presented lock mechanism is dedicated to the rear left part of the body, where it is responsible for stable locking and unlocking of the door. A properly functioning lock in the Ford Transit Custom is crucial for body sealing, protection of transported cargo, and the comfort of daily operation of a commercial vehicle.

The component cooperates with the factory locking system and the door structure, thus maintaining the correct closing geometry and resistance to loads typical for intensive work of a commercial vehicle.

Construction and Fit for Ford Transit Custom

The lock mechanism has been designed for the specific geometry of the Ford's rear left door panel, allowing for precise fitting into the factory mounting points. Proper cable routing and cooperation with the handle enable smooth opening and closing, without excessive play or jamming.

Thanks to its construction aligned with the solutions used by the vehicle manufacturer, the lock maintains consistency with the original locking system, which facilitates installation and minimizes the risk of door adjustment problems after replacing the part.

Benefits of Using the Original Rear Left Lock

Using a dedicated lock mechanism in the Ford Transit Custom allows for restoring proper door function in situations where the existing part has suffered mechanical wear, deformation, or damage due to operation. This is particularly important in vehicles operating in delivery mode, where the rear doors are used intensively.

• restoring proper locking of the rear left door panel,
• increasing the security of transported cargo thanks to secure closing,
• reducing unwanted vibrations and noises resulting from improperly closed doors,
• maintaining the factory functionality of the opening and closing system.

A used, functional mechanism from this group allows for economical repair while maintaining the original lock operating characteristics.

Mounting Location and Service Aspects

Its placement on the vehicle in the rear left part of the body requires attention to correct cable routing and cooperation with door hinges and seals. During installation, it is advisable to check the panel adjustment to fully utilize the capabilities of the newly installed mechanism.

Selecting the correct lock for a specific version of the Ford Transit Custom is facilitated by the unambiguous part marking and its belonging to the Locks and Latches category, which helps avoid compatibility issues during servicing.

Expanding the Locking System in Ford

If you are planning a comprehensive repair or upgrade of the door area in your Ford and need other parts from the same group, such as cylinders, latches, or additional door mechanisms, check the available parts in the Ford Locks and Latches category.

To better plan service work on commercial vehicles and understand the impact of key components on the durability of the drivetrain and accessories, a guide describing the refresh of a diesel engine may be helpful – you can find it in the article Second Life for the Mercedes OM642 Engine – How Injectors and Turbo Restore Power to the 3.0 V6 CDI.