Ford Kuga C520 Front Door Window Seal Gasket Lower Left N/S CJ54-S20571-AH

Ford Kuga C520 Front Door Window Seal Gasket Lower Left N/S is an original body component from the Window seals and trims group, designed for installation on the driver's side. The precisely shaped profile ensures stable window guidance, reduces wind noise, and helps maintain proper sealing in the front door.

Specifications and technical data

• SKU: 5276031
• Mark: Ford
• Condition: Used
• OEM Part Number: 5276031
• Substitutable numbers: 5276031, CJ54-S20571-AH, CJ54S20571AH
• Location on the vehicle: Front, Left
• Category: Window Seals, Gaskets & Trims

Purpose and function of the seal

The lower front door window seal on the left side is responsible for guiding the glass in the channel and preventing water and contaminants from entering the door interior. A properly selected component of this type:

• stabilizes the movement of the window during raising and lowering,
• reduces the risk of scratching the glass surface,
• limits air drafts and noise at higher speeds,
• supports proper water drainage from inside the door. Thanks to its fitment for the specific Ford Kuga C520 body model, the seal maintains the correct geometry and works seamlessly with the factory window regulator mechanism.

Original origin and fitment

The presented seal is a Ford brand component, which ensures factory manufacturing standards and compatibility with the door structure. The original profile and appropriately selected material stiffness translate into:

• secure seating in the door edge,
• proper adhesion to the glass along its entire length,
• consistent appearance with other trim elements. The vehicle location specified as front – left side allows for clear identification of the installation zone and avoids errors when selecting parts.

Condition of the component and service application

The seal is offered as a used part, making it an attractive solution for maintenance repairs and for replacing worn or damaged window guidance elements. This type of component is particularly useful in situations where:

• traces of friction or scratches appear on the edge of the glass,
• additional noise is audible in the doors while driving,
• the existing seal is deformed or partially torn. Replacing it with an original component from the same design group allows for restoring the correct operation of the window mechanism without the need for door modifications.

User comfort and operational aspects

A properly selected lower window seal affects daily driving comfort by reducing noise and improving the sealing of the door zone. Additionally, it:

• supports the protection of the door interior against excessive moisture,
• reduces the risk of corrosion of metal elements inside the door shell,
• helps maintain stable operation of the window regulator. This is a practical service solution for users who want to maintain consistency with the factory body structure and avoid problems with aftermarket fitment. If you are planning a comprehensive repair or upgrade of the side window area in your Ford and need other elements from the same group, such as additional seals, trim strips, or glass guides, check the available parts in the Ford window seals and trims category. When choosing dismantled elements, it is worth knowing the basic principles of safely selecting used components – you can find practical tips in the article Fuel metering problems: what to look for when buying a used injection pump and fuel rails?, which discusses key criteria for assessing the condition of parts from the secondary market. If you are considering whether to choose a used original element or an aftermarket replacement, the guide 5 reasons why a used OEM part is a better choice than a replacement, presenting specific arguments and examples from popular models, may be helpful.