Ford Focus Mk3 Head Roof Curtain Air Module Right O/S BM51-14K159-CA

Ford Focus Mk3 Head Roof Curtain Air Module Right O/S is an original passive safety system component designed for installation on the right side of the vehicle. Engineered by Ford, it ensures proper integration with factory electronics and body structure, which translates into predictable airbag system performance in emergency situations. This used component allows for a technically correct repair while maintaining cost-effective service.

Specifications and technical data

• SKU: BM51-14K159-CA
• Mark: Ford
• Condition: Used
• OEM Part Number: BM51-14K159-CA
• Substitutable numbers: BM51-14K159-CA, BM5114K159CA, 1866374
• Location on the vehicle: Right
• Category: Other Interior Parts & Accessories

Purpose and function of the roof curtain module

The described roof curtain module is a component of the airbag system responsible for protecting the head and upper body of passengers on the right side of the vehicle. It is mounted in the upper part of the body, along the roof edge, so that it deploys along the side window upon activation.

Thanks to its factory design and fitment for the Ford Focus Mk3 structure, the module works with collision sensors and the airbag control unit, enabling proper sequencing of the curtain deployment in the event of a side collision or vehicle rollover.

Compatibility and fitment for Ford Focus Mk3

The module has been developed specifically for the Focus Mk3 generation, taking into account the geometry of the roof, pillars, and headliner upholstery. This means:

• correct routing and positioning of the curtain along the right side of the body,
• factory mounting points,
• compatibility with the wiring harness and airbag system connectors.

Such fitment reduces the need for installation modifications and allows for maintaining the safety parameters intended by the vehicle manufacturer.

Technical characteristics and installation

As a safety system component, the roof curtain module requires installation in accordance with Ford service procedures, maintaining appropriate tightening torques and the sequence of installing covers and upholstery. A correctly installed component:

• maintains a stable position of the curtain along the right roof edge,
• ensures proper deployment during inflation,
• minimizes the risk of mechanical damage during operation.

Due to the nature of the part, installation in a specialized service center equipped with appropriate diagnostic equipment to verify the correct operation of the airbag system after replacement is recommended.

Condition, origin, and advantages of using a used part

The offered module comes from dismantling and is classified as a used Ford part. This type of component allows for an economical vehicle repair while maintaining the original design and compliance with the factory safety system. Compared to non-factory replacements, the original module provides:

• consistency with the airbag control unit software,
• preservation of the manufacturer-intended deployment characteristics,
• better fitment to body and upholstery elements.

Choosing an original, used part is particularly beneficial in the case of post-accident repairs, where it is crucial to restore the factory safety system configuration at controlled costs.

Safety, diagnostics, and selecting the correct module

Before installation, it is recommended to verify the module's compatibility with the specific vehicle equipment version and to perform airbag system diagnostics after installation. A correctly selected and installed element:

• does not generate errors in the airbag control unit memory,
• works with other airbags and seatbelt tensioners,
• maintains the integrity of the passive safety system.

This makes it possible to restore the full functionality of the passenger protection system after body repairs or replacement of damaged elements.

If you are planning a comprehensive repair or upgrade of the passive safety zone in your Ford and need other elements from the same group, such as side curtains, airbag modules, or collision sensors, check the available parts in the Other Ford category.

For a comparison of solutions used in sports designs and a better understanding of the differences in manufacturers' approaches to powertrains, braking systems, and body construction, it is worth reading the article Audi RS vs other models – what is hidden under the hood and chassis?, which shows how the selection of appropriate components affects the character and safety of a car.