Ford Focus Mk3 Front Door Lock Latch Catch Mechanism Right O/S BM5A-A21812-CF

Ford Focus Mk3 Front Door Lock Latch Catch Mechanism Right O/S is an original locking mechanism from the Locks and latches group, designed for installation on the driver's side in right-hand drive versions. The component ensures proper opening, closing, and locking of the door, which translates into safe vehicle operation and stable compatibility with the factory electrical installation and central locking system.

Specifications and technical data

• SKU: RHD-BM5A-A21812-CF-1
• Mark: Ford
• Condition: Used
• OEM Part Number: BM5A-A21812-CF
• Substitutable numbers: F1FR-7E395-GB, F1FR7E395GB, F1FR-7E395-GC, F1FR7E395GC, 2143972, 2099454, BM5A-A21812-CF, BM5AA21812CF, BM5A-A21812-CG, BM5AA21812CG
• Location on the vehicle: Front, Right
• Part type: Door Lock
• Category: Exterior Locks & Lock Hardware

Purpose and function in the vehicle

The presented lock mechanism is dedicated to the front right door of the Ford Focus Mk3 in the right-hand drive version. It is responsible for precise locking of the door leaf, cooperation with the external and internal handle, and integration with the central locking system and vehicle security features. The placement on the vehicle has been factory-optimized for:

• correct routing of control rods and cables,
• stable mounting to the door structure,
• smooth operation of latches and bolts during repeated opening and closing cycles.

Construction and technical compatibility

The Ford Focus Mk3 Front Door Lock Latch Catch Mechanism Right O/S has been designed as an OEM component, which means a perfect fit for the factory door structure and serial mounting points. As a result, installation is straightforward, without the need for bodywork modifications or wiring adaptations. A significant advantage is the presence of a dedicated OEM part number and associated interchangeable numbers in the technical specification, which facilitates verification of compatibility with a specific vehicle equipment version. This allows for selecting the correct lock for a given Ford unit, minimizing the risk of problems with installation or central locking operation.

Benefits of using an original Ford lock

Using an original front right door lock in a Ford Focus Mk3 translates into a number of practical benefits:

• Factory fit – compatibility with the door structure, serial mounting holes, and factory electrical harnesses.
• Stable operation of the locking system – proper engagement of the bolt with the striker, which reduces play and unwanted noises while driving.
• Seamless integration with electronics – correct cooperation with the central locking, alarm, and comfort functions provided for the given model.
• The ability to use existing accompanying elements, such as handles and rods, without the need for modifications. The product comes from the Locks and latches group, which means it has been designed for durable operation in an area exposed to frequent opening and closing cycles and variable operating conditions.

Condition and service application

The offered Ford Focus Mk3 Front Door Lock Latch Catch Mechanism Right O/S is a used component, making it an attractive service solution for post-accident repairs, replacing a damaged mechanism, or restoring full door functionality after a central locking failure. Choosing an original used component allows you to maintain compliance with the factory specification while reducing repair costs. The mechanism will prove useful both in the case of typical operational faults (latch wear, locking problems) and when replacing elements after bodywork or paint intervention in the area of the front right door.

Expansion of the lock system in a Ford

If you are planning a comprehensive repair or modernization of the door zone in your Ford and need other elements from the same group, such as locking mechanisms, strikers, or key cylinders, check the available parts in the Ford Locks and latches category. To better understand the importance of original components in the vehicle security system and the benefits of choosing used OEM parts, it is worth reading the article Quality assurance and OEM safety – why are used original car parts the best choice for your car?, which discusses the technical and economic aspects of such solutions in detail.