Ford Transit Custom Rear Door Catch Lock Mechanism Left N/S BK21-V43287-AG

Ford Transit Custom Rear Door Catch Lock Mechanism Left N/S is an original component from the Locks and latches category, designed for the rear left door wing. It ensures secure locking, proper cooperation with the factory opening mechanism, and stable operation of the door system during daily use.

Specifications and technical data

• SKU: BK21V43287AG
• Mark: Ford
• Condition: Used
• OEM Part Number: BK21V43287AG
• Substitutable numbers: BK21V43287AG, BK21 V43287 AG, BK21-V43287-AG
• Location on the vehicle: Rear, Left
• Category: Exterior Locks & Lock Hardware

Purpose and function of the mechanism

The presented lock mechanism has been designed specifically for the rear left part of the body, where it is responsible for securely closing and locking the cargo doors. A properly selected lock minimizes the risk of play, uncontrolled opening, and closing problems, which is important for both cargo protection and vehicle comfort.

Thanks to a design consistent with the solutions used by the vehicle manufacturer, the component works with factory rods, handles, and other door system components, allowing the original functionality of the vehicle to be maintained without the need for body modifications.

Construction and vehicle fitment

The lock mechanism is based on solutions used in original Ford parts, which translates into proper fitment with the door structure and stable mounting at the designated installation points. The locking system is optimized for operation in the rear body zone, where doors are often subjected to intensive use.

The vehicle location is clearly defined as the rear left side, which facilitates the selection of the correct component for post-accident repairs, replacement of a worn lock, or reconstruction of the cargo area. Such precise positioning reduces the risk of installation errors and speeds up the service process.

Condition of the component and practical aspects

The offered lock comes from the used parts segment, which allows for economical repair while maintaining the original design. This type of component is particularly useful for restoring the efficiency of a fleet or delivery vehicle, where a reasonable service cost is important while maintaining proper door functionality.

A properly selected and functional rear left door lock mechanism reduces hinge strain, minimizes noise resulting from improper closing, and improves the overall feeling of body rigidity in the cargo area. It is a practical solution for users who expect predictable door operation during frequent opening and closing.

Application in repairs and upgrades

This type of lock is suitable for both standard replacement of a damaged element and more extensive body and mechanical work in the rear of the vehicle. For comprehensive service of the cargo door area, it is also worth considering other components from the locking group, available in the Locks and latches category, to maintain the technical consistency of the entire system.

If you are planning a broader upgrade of the vehicle equipment using dismantled parts, the guide on our blog may be helpful – check how to reasonably retrofit your car with used parts from higher versions. This will allow you to better plan the scope of work and select components in a way that is consistent with factory solutions.

Summary

Ford Transit Custom Rear Door Catch Lock Mechanism Left N/S is a practical choice for repairing or restoring the locking function of the rear left door wing. The original design, dedicated vehicle placement, and belonging to the Locks and latches group facilitate trouble-free installation and maintenance of the factory door system functionality in daily operation.