Ford Focus Mk3 Tailgate Boot Lid Stop Buffer Rear Left N/S BM51-A439A01-AC

Ford Focus Mk3 Tailgate Boot Lid Stop Buffer Rear Left N/S is an original Ford body component designed for use in the rear left section of the vehicle. It ensures controlled, stable closing of the tailgate, reduces vibrations, and improves the overall operation of the hinge and latch assembly.

Specifications and technical data

• SKU: BM51-A439A01-AC
• Mark: Ford
• Condition: Used
• OEM Part Number: BM51-A439A01-AC
• Substitutable numbers: BM51-A439A01-AC, BM51A439A01AC
• Location on the vehicle: Rear, Left
• Category: Hinges, Latches & Additional Bonnet Components

Purpose and function of the component

The presented buffer is part of the system responsible for the proper positioning and cushioning of the tailgate in the Ford Focus Mk3. Mounted at the rear on the left side, it works in conjunction with the latch and hinges, reducing operating play and dampening the impact of the tailgate when closing.

By using the original Ford design, the component maintains the correct geometry and hardness, which translates into:

• more predictable tailgate closing,
• reduction of rattling and resonance in the rear part of the body,
• stable fit of the tailgate against the seals.

Benefits of using an original Ford component

Using a factory solution in the Ford Focus Mk3 allows for maintaining the structural integrity of the body. The Ford Focus Mk3 Tailgate Boot Lid Stop Buffer Rear Left N/S is designed for a specific body shape, meaning it requires no modifications or adjustments during installation.

Key advantages include:

• secure fit to the mounting points in the rear of the body,
• preservation of the factory tailgate line relative to the fenders and bumper,
• consistent operation with the existing latch and hinges.

The component comes from the Hinges, latches, and other hood parts group, which means it has been designed to work under demanding operating conditions, with frequent opening and closing.

Installation and operational characteristics

The buffer is intended for installation in the rear of the vehicle on the left side, in accordance with the factory Ford Focus Mk3 body layout. This location is important for the proper distribution of forces acting on the tailgate and for the tightness of the rear part of the body.

Using this component allows for an economical repair of the tailgate system while maintaining the manufacturer's original specifications. It is a practical solution in situations where:

• the tailgate does not close evenly,
• rattling or play occurs in the rear part of the body,
• it is necessary to replace a single component without interfering with the entire hinge and latch assembly.

Complementary Ford body components

If you are planning a comprehensive repair or upgrade of the rear body zone in your Ford and need other elements from the same group, such as latches, hinges, or additional tailgate limiters, check the available parts in the Hinges, latches, and other hood parts Ford category.

Technical knowledge and selection of used parts

When selecting used body components, it is worth being guided by compliance with the manufacturer's factory specifications and the actual technical condition of the part. It may be helpful to use practical tips on choosing original components, which you can find in the article The best used car parts – a guide to the most frequently chosen original parts.

For those interested in comparing design solutions across different vehicle generations and the role of OEM parts in preserving a model's character, we also recommend the material Classic Mini vs modern MINI – how the design has changed and which original Mini parts help preserve their character, which shows the importance of original components in the long-term operation of a car.