Ford Focus Mk3 Door Seal Rear Right O/S Window Strip Gasket BM51-A25860-AD

Ford Focus Mk3 Door Seal Rear Right O/S Window Strip Gasket is a precisely fitted component from the Door seals group, designed for installation in the rear right section of the vehicle body. It is responsible for the tight guidance of the window, noise reduction, and protection of the interior against water and contaminants, which translates into stable operation of the window lifting mechanism and acoustic comfort in the cabin.

Specifications and technical data

• SKU: BM51-A25860-AD
• Mark: Ford
• Condition: Used
• OEM Part Number: BM51-A25860-AD
• Substitutable numbers: BM51-A25860-AD, BM51A25860AD, 1747504
• Location on the vehicle: Rear, Right
• Part type: Door Seal
• Category: Door Seals

Purpose and function of the seal

The presented seal is dedicated to the rear right door window in the third-generation Ford Focus model. Its placement in the Rear – right side area ensures that this component is responsible for the proper guidance of the window in the track and maintaining adequate pressure against the door frame. As a result, it reduces air drafts, minimizes noise at higher speeds, and supports corrosion protection for the door edge.

The seal works in direct contact with the glass, which is why its proper profile and flexibility are crucial for smooth window movement and even pressure distribution along the entire length of the edge. Using an original solution from this group allows for maintaining factory sealing parameters and driving comfort.

Benefits of using an original Ford seal

Choosing a component from the Door seals group specifically designed for the Ford Focus Mk3 provides a number of practical benefits:

• factory fit to the shape of the door frame and window on the rear right side,
• stable seating in the door slot, without the need for modifications,
• maintenance of proper acoustic and water sealing,
• reduction of the risk of the window jamming in the track,
• consistency with other body components in terms of construction.

Using an original seal in this location is particularly important for vehicles operated in variable weather conditions, where frequent temperature and humidity fluctuations can accelerate the wear of rubber components. A properly selected seal helps maintain stable operating conditions for the window lifting mechanism and limits moisture penetration into the door interior.

Installation and operational characteristics

The rear right door window seal has been designed as a component intended for installation in a specific location on the body, which facilitates correct positioning and reduces service time. The appropriate working profile allows for even adhesion to the glass and door frame, and the properly selected material hardness supports the durability of the connection during repeated opening and closing of the door.

The product comes from the Ford brand, which means compliance with the vehicle's factory construction standards is maintained. This is especially important for sealing components, where even small dimensional deviations can result in leaks or improper window operation. The used nature of the part allows for economical replacement while maintaining original geometry and compatibility.

Application in service practice

Replacing the window seal in the rear right door is recommended in situations where the following occur:

• noticeable air noise at higher speeds in the area of the rear right window,
• traces of water leaks on the door upholstery or in the lower part of the seal,
• window jamming during raising or lowering,
• visible cracks, deformations, or loss of material flexibility.

Using a dedicated seal allows for restoring the correct operating conditions of the window mechanism and reducing the risk of further damage to internal door components. This is a practical solution for both routine repairs and comprehensive renovation of the side part of the body.

If you are planning a comprehensive repair or upgrade of the door area in your Ford and need other components from the same group, such as perimeter seals, window frame seals, or additional guide profiles, check the available parts in the Ford door seals category.

For drivers interested in a broader approach to vehicle modification and operation, including the impact of equipment changes on driving characteristics and sound, an article describing the practical aspects of selecting and installing a sports exhaust system in compact segment cars may be helpful – you can find it here: Second-hand Mini John Cooper Works Pro sports exhaust – a legal way to get a racy sound and +7 HP.