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 group, designed for the rear left section of the vehicle body. It ensures the proper operation of the cargo doors, stable locking, and secure closing, which is crucial for the daily operation of a commercial vehicle.

Specifications and technical data

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

Purpose and function in the vehicle

The presented lock mechanism is dedicated to installation in the rear left part of the body, responsible for precise door locking in the Ford Transit Custom. A properly selected lock minimizes the risk of play, incomplete closing, and uncontrolled opening of the door leaves during driving or loading. Thanks to a design consistent with Ford brand factory standards, the component works with original guides, hinges, and rods, which facilitates installation and subsequent adjustment. This solution is particularly important in vehicles used intensively in urban transport and distribution.

Construction and technical properties

The lock mechanism belongs to the Locks and latches group, meaning it is responsible for both locking the door in the closed position and working with the internal and external opening systems. The construction is based on a precise system of pawls and levers, adapted to work in variable operating conditions. This solution has been designed for:

• stable holding of the door leaf in the closed position,
• smooth cooperation with the handle and control rods,
• resistance to frequent opening and closing cycles,
• maintaining the tightness of the cargo area by properly pulling the door shut.

Benefits of using an original lock

Using an original lock mechanism in a Ford Transit Custom translates into measurable operational benefits. Factory fitment limits the need for modifications, and proper alignment with the bodywork and other door components shortens installation time. This is especially important in fleet vehicles, where a quick return to service is essential. A component from this group also allows for maintaining the proper level of cargo security – correct locking reduces the risk of accidental door opening while driving, and thus potential damage to transported goods.

Use of used OEM parts

Choosing a used, original lock for a Ford Transit Custom is a reasonable compromise between cost and quality. An OEM part retains factory geometry and operating characteristics, which is difficult to achieve with many aftermarket replacements. Thanks to this, you can restore proper door operation without overstretching the service budget. If you want to better plan repairs after a collision or intensive use and are considering using original second-hand components, it is worth checking out the practical tips contained in the article Repairing a car after a collision: how to restore full efficiency using used original parts without overpaying?.

Expansion and related components

If you are planning a comprehensive repair or upgrade of the door locking area in your Ford and need other components from the same group, such as additional latches, locking mechanisms, or related control elements, check the available parts in the Ford locks and latches category.