Ford Transit Connect Door Window Frame Front Right O/S Guide Trim DT11-V21978-AC

Ford Transit Connect Door Window Frame Front Right O/S Guide Trim is an original component from the Window seals and trims group, designed for installation in the front right door. It ensures a tight fit of the window within the door frame, reducing noise, vibrations, and water ingress into the vehicle interior, which translates into a more comfortable and stable driving experience.

Specifications and technical data

• SKU: KT1B-V21978-AA
• Mark: Ford
• Condition: Used
• OEM Part Number: KT1B-V21978-AA
• Substitutable numbers: KT1B-V21978-AA, DT11-V21978-AC
• Location on the vehicle: Front, Right
• Category: Window Seals, Gaskets & Trims

Purpose and function of the seal

The presented window frame seal is dedicated to the passenger-side front door of the Ford Transit Connect model. The component operates at the contact point between the glass and the door frame, stabilizing its movement and creating a barrier against water, dust, and air. As a result, it reduces window fogging, lowers noise levels at higher speeds, and improves the overall refinement of the bodywork.

The seal works in conjunction with the window regulator mechanism, which is why its proper shape and flexibility are crucial for the smooth operation of the lift and even pressure of the glass against the frame. A properly selected profile minimizes the risk of jamming, squeaking, or leaks in the upper part of the door.

Construction, fitment, and installation

As a Ford brand component, the seal has been designed for the specific dimensions of the door frame and window in the Ford Transit Connect, ensuring a precise fit without the need for modifications. The cross-sectional shape and mounting points comply with factory specifications, facilitating installation both in workshop conditions and in professional body and paint shops.

The placement on the vehicle, specified as front – right side, allows for clear identification of the correct mounting point and avoids errors when selecting the part. In practice, this means that the seal is intended exclusively for the right front door panel, and its geometry is optimized for this specific area of the body.

Performance characteristics and advantages

A properly selected window frame seal affects several important aspects of vehicle operation:

• limiting the ingress of water and moisture into the door interior and cabin,
• reducing aerodynamic noise in the area of the A-pillar and the upper edge of the door,
• stable guidance of the window in the tracks, which promotes even closing,
• reducing the risk of corrosion within the door frame due to better protection against contaminants.

A component from this group is particularly important in commercial vehicles such as the Transit Connect, where doors are often heavily used. Replacing a worn seal with an original component allows for the restoration of factory-level sealing and improves the comfort for both the driver and passenger.

Product condition and service application

The seal is offered in used condition, making it an attractive service solution for post-accident repairs, replacing corroded doors, or restoring factory body sealing on a budget. For workshops specializing in the maintenance of commercial vehicles, it represents a practical alternative to new parts while maintaining compliance with the manufacturer's original specifications.

Selecting the correct seal for the specific body version and side of the vehicle is crucial to avoid problems with installation and subsequent operation. In case of doubt, it is worth verifying compatibility with Ford service documentation or comparing the shape and length with the removed part.

Related components and expansion of the sealing system

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

For users interested in a broader vehicle upgrade, including the drivetrain, a guide on selecting and operating transmissions may be helpful – a detailed discussion of different types of gearboxes, their typical faults, and tips for purchasing used solutions can be found in the article Gearbox: manual, automatic, or DSG – typical faults and a guide to buying a used transmission.