4M51-A61209-CC Ford Focus

4M51-A61209-CC Ford Focus Front Left Seat Belt Buckle is a component from the Seat belts and parts category, designed for operation in the front left driver's seat area. This practical solution allows for the restoration of full functionality of the passive safety system in your Ford, ensuring proper fastening and locking of the seat belt while driving.

Specifications and technical data

• SKU: 4M51-A61209-CC
• Mark: Ford
• Condition: Used
• OEM Part Number: 4M51-A61209-CC
• Substitutable numbers: 4M51-A61209-CC, 4M51A61209CC
• Part type: Seat Belt
• Category: Seat Belts & Parts

Purpose and technical function

The described seat belt buckle has been designed as a factory-fitted component for the Ford Focus Mk2 on the driver's side. Its task is mechanical and sensor-based interaction with the seat belt, so that the system can react correctly in emergency situations and during daily vehicle operation. This component is responsible for:

• stable latching of the seat belt buckle,
• transmitting information about the seat belt being fastened to the vehicle's electrical system (warning light, audible signal),
• cooperation with passive safety systems, such as airbags.

Benefits of using an original Ford component

As a Ford brand part, the seat belt buckle is structurally matched to the seat, guides, and the factory wiring harness in the Ford Focus Mk2. Thanks to this:

• the correct geometry of the seat belt routing relative to the seat and pillar is maintained,
• electrical connections are compatible with the vehicle's installation,
• there is no need for modifications to mounts or interference with the body structure. Such a fit translates into trouble-free installation and predictable operation of the safety system, in accordance with the vehicle manufacturer's specifications.

Performance characteristics and installation

The presented seat belt buckle is a dismantled component, which allows for economical repair while maintaining the original Ford design. The product comes from the Seat belts and parts category, making it prepared for operation in the demanding environment of the vehicle interior – in the immediate vicinity of the seat, center console, and upholstery elements. In practice, installation comes down to:

• mechanically bolting the buckle to the seat structure or console (depending on the version),
• connecting the plug to the factory electrical harness,
• verifying the correct operation of the warning light and the unfastened seat belt signal. This solution allows for efficient restoration of functionality without the need for replacements with uncertain fitment.

Application in the vehicle safety system

A functional seat belt buckle on the front left seat is crucial for the operation of the entire driver protection system. This component works with:

• the seat belt retractor mechanism,
• passenger presence and seat belt fastening sensors,
• the airbag system control module. Thanks to this, the vehicle can correctly recognize whether the seat belt is fastened and then appropriately select the strategy for the operation of safety systems in the event of a collision. Replacing a damaged buckle with an original component allows for restoring the coherence of the entire system's operation.

Complementary components and additional information

If you are planning a comprehensive repair or upgrade of the interior safety zone in your Ford and need other components from the same group, such as tensioners, retractors, or complete seat belts, check the available parts in the Ford seat belts and parts category. When selecting safety components, it is worth paying attention to the compliance of manufacturer markings and the intended use for a specific vehicle generation. Helpful tips on verifying components by numbers and markings can be found in the guide Online parts shopping without risk – 5 proven ways to verify component compatibility. For those interested in the broader context of the development of safety systems and equipment in higher-class cars, an interesting supplement to knowledge may be the article Evolution of the Mercedes S-Class: from W140 to W222 – innovations, model differences, and Mercedes auto parts over the years, which discusses, among other things, changes in the design of modern safety systems.