Ford Focus Mk3 Door Check Strap Stopper Gasket Seal Rear Left N/S CM51-A27207-AB

Ford Focus Mk3 Door Check Strap Stopper Gasket Seal Rear Left N/S is a precisely fitted component from the Door seals group, designed specifically for the rear left door check strap. The original design ensures proper door guidance, reduction of play, and stable operation of the mechanism during daily vehicle use.

Specifications and technical data

• SKU: CM51-A27207-AB
• Mark: Ford
• Condition: Used
• OEM Part Number: CM51-A27207-AB
• Substitutable numbers: CM51-A27207-AB, CM51A27207AB, 1748276
• Location on the vehicle: Rear, Left
• Part type: Door Seal
• Category: Door Seals

Purpose and technical function

The rear left door check strap gasket in the Ford Focus Mk3 is responsible for proper sealing and support of the point where the check strap interacts with the door structure. Thanks to this:

• it reduces the transmission of vibrations from the body to the door panel,
• it limits unwanted knocking and noise during opening and closing,
• it supports stable door positioning in extreme positions,
• it protects contact surfaces against excessive mechanical wear. The element is intended for installation in the rear left door zone, which guarantees proper fit to the body geometry of the third-generation Ford Focus.

Benefits of using the original gasket

Using a dedicated check strap gasket in the Ford Focus Mk3 allows for maintaining the factory door operating characteristics. In practice, this means:

• more predictable, smooth door opening and closing,
• better protection against play at the check strap–door connection,
• maintaining proper operating standards for hinges and the check strap mechanism,
• easier diagnostics of potential future faults within the door area, as the contact point remains stable. For the user, this translates into acoustic comfort inside the vehicle and a more solid feel every time the door is opened.

Installation and fitment for Ford Focus Mk3

The gasket has been designed with a specific vehicle location in mind, which facilitates installation and minimizes the risk of incorrect seating. The element is intended for installation in the rear left body zone, at the door check strap operating point. With correct installation:

• the gasket adheres precisely to the contact surfaces,
• it does not require additional adjustment or trimming,
• it provides stable support for the moving check strap element. The product comes from a group of parts dedicated to the Ford brand, which helps maintain the structural integrity of the entire door system.

Characteristics of the used component

As an aftermarket part, the Ford Focus Mk3 rear left door check strap gasket is a solution that allows for an economical, yet technically correct repair of the door zone. This type of component will work well both when replacing a worn element and when restoring proper door operation after previous service interventions.

Related Ford Door seals

If you are planning a comprehensive repair or upgrade of the door area in your Ford and need other elements from the same group, such as edge seals, door frame seals, or additional sealing inserts, check the available parts in the Ford Door seals category.

Knowledge and service tips

When planning work on the body and door elements, it is worth expanding your knowledge about solutions used by various manufacturers to better assess the durability and construction of individual components. An article describing the development of technology in the luxury car segment may be helpful – you can find it here: Evolution of the Mercedes S-Class: from W140 to W222 – innovations, model differences, and Mercedes auto parts over the years.