Ford Fiesta Mk8 Gearbox Mount Bracket Support 1.5 EcoBoost ST K1BY-7M125-AA

Ford Fiesta Mk8 Gearbox Mount Bracket Support 1.5 EcoBoost ST is an original component from the Gearbox and drivetrain mounts group, designed for use with the manual transmission in the sporty ST version with the 1.5 EcoBoost engine. A stable gearbox mount is crucial for the precise operation of the drivetrain, gear shifting comfort, and the reduction of unwanted vibrations.

Specifications and technical data

• SKU: 2238633
• Mark: Ford
• Condition: Used
• OEM Part Number: 2238633
• Substitutable numbers: 2238633, K1BY-7M125-AA, K1BY7M125AA
• Gearbox type: Manual
• Part type: Transmission Mount
• Category: Transmission & Drivetrain Mounts

Purpose and function of the component

The presented gearbox bracket is responsible for a rigid yet controlled connection between the manual transmission and the vehicle's body. In high-performance cars, such as the Fiesta ST with the 1.5 EcoBoost unit, a correctly selected gearbox mount is important for:

• maintaining the proper geometry of the drivetrain under load,
• reducing the transmission of vibrations and noise into the cabin,
• stability of the powertrain during dynamic acceleration and engine braking,
• limiting excessive gearbox movement, which can affect gear shifting precision.

By using a dedicated, original mount, the system operates within the range intended by Ford engineers, which promotes the durability of other drivetrain components.

Benefits of using the original bracket

Choosing an original gearbox mount for the Fiesta Mk8 ST allows you to maintain the factory operating parameters of the drivetrain. Compared to aftermarket replacements, this component ensures:

• precise fitment to mounting points on the body and the gearbox housing,
• compatibility with the operating characteristics of the manual transmission used in this model,
• predictable vehicle behavior during load changes,
• reduced risk of improper tension on other engine mounts and bushings.

This is particularly important in cars driven dynamically, where the drivetrain is exposed to frequent and sudden changes in torque.

Condition, verification, and installation

The item comes from disassembly and is offered as a used part, which represents a reasonable compromise between cost and maintaining original technical specifications. Before installation, a standard visual inspection for any mechanical damage or wear on the mounting points is recommended.

The bracket is designed for use with a manual transmission, so it should only be used in vehicles equipped with this type of gearbox. It is advisable to entrust the installation to a workshop with experience in Ford models, which will facilitate the correct alignment of the powertrain and verification of other mounts.

Technical support and additional information

When selecting a gearbox mount for a specific Fiesta Mk8 ST configuration, it is helpful to compare part numbers and the type of transmission used. In case of doubt, it is worth consulting a mechanic or the store's technical department to confirm compatibility with your specific vehicle.

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Ford and need other components from the same group, such as additional mounts, bushings, or brackets, check the available parts in the Ford gearbox and drivetrain mounts category.

For drivers considering different service strategies for transmission issues, an article discussing the cost-effectiveness of purchasing used components, the differences between manual and automatic transmissions, and compatibility issues will be useful – you can find the details in the post Used gearbox – when is it worth it and what you need to remember.