Ford Focus ST-3 Mk2 Transmission Support Mount Holder Carrier 3M51-7M125-NF

Ford Focus ST-3 Mk2 Transmission Support Mount Holder Carrier is a component from the Transmission and drivetrain mounts group, designed specifically for the sporty ST-3 version. It is responsible for providing stable support for the transmission mount, reducing vibrations, and ensuring proper load transfer to the chassis, which translates into precise handling and predictable drivetrain behavior.

Specifications and technical data

• SKU: 1344688
• Mark: Ford
• Condition: Used
• OEM Part Number: 1344688
• Substitutable numbers: 1344688, 3M51-7M125-NF, 3M517M125NF
• Part type: Transmission Mount
• Category: Transmission & Drivetrain Mounts

Purpose and function in the drivetrain

The transmission support mount in the ST-3 version operates under demanding conditions – during dynamic driving, frequent load changes, and higher torque levels. Its tasks include:

• maintaining the correct position of the transmission relative to the chassis,
• stabilizing the drivetrain during acceleration and engine braking,
• reducing the transmission of vibrations and oscillations to the body,
• ensuring proper cooperation with other engine and drivetrain mounts. As a result, the Ford Focus ST-3 Mk2 drivetrain maintains appropriate rigidity while not transferring excessive loads to the body components.

Benefits of using the original support mount

Using a support mount dedicated to the ST-3 version allows for maintaining the factory performance parameters of the transmission and the entire drivetrain. The original mounting geometry translates into:

• correct alignment of the transmission relative to the half-shafts and other drivetrain components,
• reduced risk of premature wear of joints and mounts,
• stable vehicle handling at higher speeds and in corners,
• more predictable operation of the gear shifting mechanism. This solution is particularly important in cars used dynamically, where precision and repeatability of the drivetrain behavior are of great importance.

Product characteristics and fitment

The support mount belongs to the Transmission and drivetrain mounts group, meaning it works directly with the transmission mount and other drivetrain support points. The component is ready for installation in place of the factory mount, without the need for structural modifications, which facilitates the mechanic's work and shortens service time. The product comes from the Ford brand, which ensures compliance with factory technical documentation and the parameters intended for the ST-3 Mk2 version. This maintains compatibility with original bolts, the transmission mount, and adjacent structural elements.

Condition, verification, and service application

The item is offered in used condition, which allows for an economical repair while maintaining the original design specifications. This type of part is often chosen for:

• post-collision repairs in the drivetrain area,
• mechanical damage to transmission mounts,
• upgrading a car from a lower-power version to parameters similar to the ST-3,
• restoring the car to its factory configuration after unsuccessful modifications. Selection by OEM number and interchangeable numbers allows for precise verification of compatibility with a specific Ford Focus Mk2 configuration, minimizing the risk of errors during purchase.

Support with selection and additional materials

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 brackets, mounts, or fasteners, check the available parts in the Ford transmission and drivetrain mounts category. To better plan your repair budget and understand the differences between new and used drivetrain components, it is worth checking out our expert guide: Why it is worth buying used transmissions and engines – facts instead of myths. You will find practical tips on selecting parts by OEM number and a discussion on the cost-effectiveness of using used components in professional service.