Ford Mondeo Mk4 Rear Door Window Weatherstrip Trim Left N/S 7S71-A25605-AK

Ford Mondeo Mk4 Rear Door Window Weatherstrip Trim Left N/S is an original body component designed for installation on the rear passenger side. It ensures a tight seal for the window, limits the ingress of water and contaminants into the door interior, and improves the operation of the window lifting mechanism. Thanks to its precise fit for the specific body model, installation is accurate and requires no modifications.

Specifications and technical data

• SKU: 1742021-1
• Mark: Ford
• Condition: Used
• OEM Part Number: 1742021
• Substitutable numbers: 1742021, 7S71-A25605-AK, 7S71A25605AK
• Location on the vehicle: Rear, Left
• Category: Body Mouldings & Trims

Purpose and function of the component

The presented weatherstrip trim is intended for the rear left section of the vehicle body, where it is responsible for properly sealing the door window. The component guides the edge of the window in its upper section, stabilizes the window's movement during opening and closing, and reduces wind noise at higher speeds. A properly selected weatherstrip also helps protect the interior of the door from moisture, which contributes to a longer service life for the window regulator mechanism and electrical wiring.

Benefits of using an original trim

Using an original weatherstrip trim in the Ford Mondeo Mk4 allows you to maintain the factory fit of the body components. The appropriate rubber profile and shape, matched to the door frame, ensure:

• stable window guidance in the rail,
• reduction of air drafts and noise,
• better protection against water and fine contaminants,
• more uniform operation of the window lifting mechanism. As a result, the acoustic comfort inside the vehicle remains at a level close to factory standards, and the risk of accelerated corrosion inside the door is reduced.

Installation characteristics

The trim has been designed as a component dedicated to a specific model and position on the vehicle, which facilitates installation in place of a worn or damaged weatherstrip. Properly profiled edges and mounting points allow the component to be seated in the factory slots without the need for adjustments or trimming. In practice, this translates into shorter service time and a lower risk of leaks resulting from improper installation.

Use in body repairs

Replacing the rear left door window weatherstrip trim is recommended in the event of visible signs of rubber wear, cracks, deformations, or problems with closing the window. Maintaining the proper condition of seals is important not only for driving comfort but also for protecting the door interior from long-term moisture. Regular inspection of window seal condition is a good addition to standard body maintenance. 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 covers, overlays, or additional trims, check the available parts in the Ford protective and decorative trims category. To better plan your vehicle service budget and understand the differences between new and used fuel system components, it is worth reading the guide on our blog: Fuel dosing problems – how to safely choose a used injection pump and fuel rail.