Ford Fiesta St MK8 Rear Door Weatherstrip Seal Gasket Left N/S H1BB-A25325-AK

Ford Fiesta St MK8 Rear Door Weatherstrip Seal Gasket is a precisely fitted component from the Door seals category, designed for installation on the rear left side of the vehicle body. Its original Ford origin ensures proper adhesion to the bodywork, stable seating, and predictable performance during vehicle operation.

Specifications and technical data

• SKU: H1BB-A25325-AK
• Mark: Ford
• Condition: Used
• OEM Part Number: H1BB-A25325-AK
• Substitutable numbers: H1BB-A25325-AK, H1BBA25325AK, 2354829
• Location on the vehicle: Rear, Left
• Part type: Door Seal
• Category: Door Seals

Purpose and function of the seal

The presented seal is designed for installation on the rear left door of the Ford Fiesta St MK8, where it is responsible for a tight connection between the door panel and the body. Its task is to limit the ingress of water, moisture, and contaminants into the interior, as well as to reduce wind noise when driving at higher speeds.

A properly selected seal profile stabilizes the door in the opening, which translates into correct closing and reduced load on the hinges and lock. Proper sealing in this area is also important for the acoustic comfort of the cabin and the protection of upholstery and trim elements against moisture.

Benefits of using an original Ford seal

Using an original Ford component allows for maintaining factory adhesion and flexibility parameters, which is particularly important in models with stiffened suspension, such as the Fiesta ST. Thanks to this:

• the proper tightness of the door perimeter in the rear left part of the body is maintained,
• the risk of rattles and squeaks resulting from bodywork flex is reduced,
• the "whistling" of air at higher speeds is limited,
• the cabin is better protected against moisture and dirt from the outside.

The original geometry of the seal facilitates installation at factory mounting points, without the need for modifications or fitting universal replacements.

Vehicle placement and fitment

The component is intended for installation in the rear left door zone, which is important both when selecting parts and when planning service work. Proper placement on the vehicle ensures compatibility with the body line and the factory shape of the door frame in the ST MK8 version.

Selecting a seal consistent with the design of a given model reduces the risk of leaks resulting from differences in bending radii, profile cross-section, or perimeter length. This is especially important in cars used daily, where doors are frequently opened and closed, and the seal operates across a wide temperature range.

Condition and service application

The seal comes from disassembly and is offered as a used original component, which allows combining a favorable purchase cost with the preservation of factory fitment. This type of part will work well both when replacing a worn or damaged seal and for post-accident repairs within the rear left door area.

Replacing the seal is recommended, among other situations, when noticeable wind noise, visible leaks, traces of water on the sills, or problems with proper door closing caused by loss of material flexibility occur.

Support in selection and related components

In case of doubts regarding compatibility with a specific equipment version, it is worth verifying the markings in the vehicle's technical specification or consulting a service center to select a seal that exactly matches the body configuration. Proper selection of the sealing component has a direct impact on the durability of the interior and the comfort of daily operation.

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 perimeter seals, sill seals, or additional sealing profiles, check the available parts in the Ford door seals category.