Ford Focus Mk2 Brake Caliper Housing Rear Left N/S 3M51-2M089-BA

Ford Focus Mk2 Brake Caliper Housing Rear Left N/S is an original brake system component designed for the rear axle on the driver's side in petrol-engine vehicles. As part of the Brake Calipers and Brackets group, it ensures precise pad guidance relative to the disc and stable operation of the entire system. This used OEM component is a sensible choice for brake maintenance when you require factory fitment and predictable performance parameters.

Specifications and technical data

• SKU: RM3M51-2M089-BA
• Mark: Ford
• Condition: Used
• OEM Part Number: RM3M51-2M089-BA
• Substitutable numbers: RM3M51-2M089-BA, RM3M512M089BA, 2080516, 3M51-2M089-BA, 3M512M089BA
• Location on the vehicle: Rear, Left
• Fuel type: Petrol
• Part type: Brake Caliper
• Category: Calipers & Brackets

Purpose and compatibility for Ford Focus Mk2

The presented caliper has been designed specifically for the Ford Focus Mk2 with a petrol engine, intended for the rear axle on the left side of the vehicle. This ensures correct mounting geometry, proper positioning relative to the disc, and compatibility with the factory brake system of this model. As a result, installation is straightforward, without the need for modifications or adapters.

Technical characteristics of the caliper

The rear left brake caliper is responsible for evenly pressing the pads against the disc during braking, stabilizing the vehicle especially during deceleration and when the parking brake is engaged. The design intended for Focus Mk2 petrol units ensures:

• adequate body rigidity under intensive braking conditions,
• correct pad guidance in the bracket,
• compatibility with the stock master cylinder and brake lines,
• maintenance of factory braking force characteristics on the rear axle.

Thanks to the use of original mounting geometry, the caliper maintains the correct position relative to the disc, which reduces the risk of uneven pad wear and unwanted vibrations.

Benefits of using an original used caliper

Choosing an original, used brake caliper for the Ford Focus Mk2 is a compromise between cost and maintaining factory parameters. Compared to low-budget replacements, you gain:

• factory fitment to the hub, disc, and brake lines,
• maintenance of stock brake pedal feel,
• easier diagnostics and service in the future,
• consistency with other Ford brake system components.

A used OEM component allows for economical repair while maintaining predictable vehicle behavior during braking, which is important for both daily use and technical inspections.

Professional installation and maintenance tips

When replacing the rear left caliper in a Ford Focus Mk2, it is worth taking a comprehensive approach to brake system service. It is recommended to simultaneously check the condition of the discs, pads, flexible hoses, and the quality of the brake fluid. Proper bleeding of the system after installation is crucial for achieving a stable brake pedal feel and even distribution of braking force between the axles.

To better prepare for the purchase and installation of used brake components, you can use the practical tips included in the article: Second-hand brake system – how to safely select discs, calipers, and ABS?. You will find a checklist there that facilitates the assessment of component condition and minimizes the risk of incorrect part selection.

Service expansion – other Ford brake components

If you are planning a comprehensive repair or upgrade of the braking area in your Ford and need other elements from the same group, such as additional calipers, brackets, or mounting holders, check the available parts in the Ford Brake Calipers and Brackets category.