Ford Kuga C520 Front Door Window Seal Gasket Lower Right O/S CJ54-S20570-AH

Ford Kuga C520 Front Door Window Seal Gasket Lower Right O/S is an original body component from the Window seals and trims category, designed for installation in the front right door. It ensures a tight window guide, reduces wind noise, and protects the interior of the door from moisture and contaminants, which translates into stable operation of the window lifting mechanism.

Specifications and technical data

• SKU: 5276026
• Mark: Ford
• Condition: Used
• OEM Part Number: 5276026
• Substitutable numbers: 5276026, CJ54-S20570-AH, CJ54S20570AH
• Location on the vehicle: Front, Right
• Category: Window Seals, Gaskets & Trims

Purpose and function of the seal

The lower window seal for the front right door in the Ford Kuga C520 model is responsible for precise sealing of the glass edge within the guide. This component:

• stabilizes the window during raising and lowering,
• limits water ingress into the door interior,
• reduces wind noise at higher speeds,
• protects the glass edge from excessive mechanical wear. Thanks to its specific profile and fitment for the particular body model, the seal supports the proper operation of the entire window lifting mechanism and improves cabin acoustic comfort.

Vehicle fitment and installation

The presented seal is intended for installation in the front – right side of the vehicle zone. This means that its geometry, length, and edge shape are adapted to the passenger door of the Ford Kuga C520, which facilitates installation and ensures proper adhesion to the glass and door frame. As a component sourced from dismantling, the seal retains its factory geometry and mounting method, allowing for installation in place of a worn or damaged part without the need for modifications. In practice, this translates into:

• shorter replacement time,
• secure fit with the door frame,
• preservation of the original body line and window operation.

Benefits of using an original seal

Using an original window seal in the Ford Kuga C520 allows for maintaining sealing parameters and comfort levels close to factory specifications. Compared to aftermarket replacements, the OEM component usually better replicates:

• the contact profile with the glass and door frame,
• material stiffness and flexibility at low and high temperatures,
• water drainage zones from the glass edge. This is particularly important in vehicles operated year-round, where stable sealing of the window-door system affects the protection of the interior against corrosion and the comfort of vehicle use.

Application in service practice

Replacement of the lower window seal is recommended in situations where the following occur:

• increased noise in the door area at higher speeds,
• traces of water or moisture in the lower part of the door upholstery,
• difficulties with smooth window movement or it "catching" halfway,
• visible cracks, deformations, or losses in the sealing rubber. Selecting an original component from the same assembly group allows for restoring proper window operation without interfering with the lifting mechanism, which often reduces repair costs. 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 guide rails, additional edge seals, or finishing trims, check the available parts in the Ford Window seals and trims category. When working with body and door components, there is often a need to optimize costs in other vehicle systems as well. If you are considering purchasing used fuel system components and want to reduce the risk of improper engine operation, it is worth checking the guide: Fuel dosing problems – what to look for when buying a used injection pump and fuel rails.