Seat Ibiza Mk5 Seal Gasket Window Frame Guide Rail Rear Left N/S 6F0839431J

Seat Ibiza Mk5 Seal Gasket Window Frame Guide Rail Rear Left N/S is a precision body component responsible for stable window guidance and limiting the ingress of water and noise into the vehicle interior. As an original Seat brand component from the Window seals and trims category, it ensures a proper fit to the door structure and maintains the factory operating parameters of the window mechanism. This used part allows for an economical yet technically sound repair of the rear left window area in your car.

Specifications and technical data

• SKU: 6F0839431J
• Mark: Seat
• Condition: Used
• OEM Part Number: 6F0839431J
• Substitutable numbers: 6F0839431J, 6F0 839 431 J
• Location on the vehicle: Rear, Left
• Rim width: 6
• Category: Window Seals, Gaskets & Trims

Application and function in the bodywork

The Seat Ibiza Mk5 Seal Gasket Window Frame Guide Rail Rear Left N/S operates in the area of the rear driver-side door, working in conjunction with the window regulator mechanism and the door frame. Its function is to:

• guide the window along the correct trajectory during opening and closing,
• limit lateral play that could cause rattling and vibrations,
• assist in sealing the window edge against the door frame,
• maintain a stable window position when closed.

Thanks to its specific profile and fitment to the door structure, this component helps maintain acoustic comfort and the proper operation of the window lifting mechanism in the rear left part of the bodywork.

Compatibility and fitment

The presented seal is designed for installation in the Seat Ibiza Mk5 model on the rear left side of the vehicle. This means its geometry, mounting points, and guide shape are adapted to the factory door construction of this model. Using an original Seat component minimizes the risk of problems with:

• improper adhesion to the door frame,
• window jamming during operation,
• excessive noise in the rear window area,
• accelerated wear of the lifting mechanism.

As a result, the installation process is predictable, and the final effect is close to the factory state of the vehicle.

Characteristics of the used component

The offered guide rail seal is a used part, which allows for reduced repair costs while maintaining the original manufacturer's specifications. Such components are frequently chosen for accident repairs, replacing corroded or mechanically damaged guides, and resolving window operation issues on the rear left side. A used part from dismantling is a particularly beneficial solution when you want to maintain consistency with the factory body structure without investing in a new door assembly or a full set of seals.

Importance of correct part selection

The correct selection of a window frame guide rail seal has a direct impact on the durability of the lifting mechanism, door tightness, and driving comfort. It is worth paying attention to the compatibility of the location on the vehicle and the intended model. If you want to organize the window and trim area in your car and are also interested in other elements from this group, such as additional edge seals, finishing trims, or guides in other doors, you can use the dedicated category for this brand – Seat window seals and trims.

Support with selection by OEM number

When selecting a used window frame guide rail seal for a specific body version, it is worth using the OEM number and vehicle data to avoid installation errors. Practical tips on using catalog numbers and identifying parts can be found in the guide: how to choose the right car part by VIN and OEM number. This will make it easier to verify the compatibility of the component with your car and reduce the risk of an incorrect purchase.

Additionally, if you are considering purchasing other aftermarket components, including fuel system elements, useful information on the safe selection of used components can be found in the article Fuel dosing problems: what to look for when buying a used injection pump and fuel rails?, which discusses best practices when purchasing parts from dismantling.