Ford Mondeo Mk5 Fuel Tank Filler Pipe Seal Gasket KS7B-F405B84-AB

Ford Mondeo Mk5 Fuel Tank Filler Pipe Seal Gasket is an original component from the Fuel tanks and filler pipes group, designed for a tight connection between the filler pipe and other fuel system components. This used Ford brand part allows for a technical, economical, and factory-standard replacement of a worn or leaking gasket, improving vehicle operational safety.

Specifications and technical data

• SKU: KS7B-F405B84-AB
• Mark: Ford
• Condition: Used
• OEM Part Number: KS7B-F405B84-AB
• Substitutable numbers: KS7B-F405B84-AB, KS7BF405B84AB, 2366255
• Part type: Filler Neck
• Category: Fuel Tanks & Filler Necks

Function and application of the fuel filler pipe gasket

The fuel filler pipe gasket in the Ford Mondeo Mk5 is responsible for maintaining the tightness of the connection between the filler pipe and the fuel tank system components. A properly selected and installed gasket reduces the risk of leaks, fuel vapors escaping into the environment, and unpleasant odors in the wheel arch and rear body area.

Using an original component from this group allows for maintaining the factory performance parameters of the fuel system, which is important for both safety and proper interaction with the vehicle's diagnostic systems.

Benefits of using an original Ford gasket

Choosing an original fuel filler pipe gasket for the Mondeo Mk5 ensures:

• precise fit to the diameter and geometry of the fuel filler pipe,
• stable seating in the housing, without the need for modifications or additional sealants,
• maintenance of tightness within typical temperature and operational load ranges,
• compatibility with the factory fuel tank and other fuel system components.

Thanks to this, replacing a worn gasket with an original part is a technically safe and predictable solution, reducing the risk of recurring leaks after a short period of use.

Selection by part numbers and integration with the fuel system

The gasket belongs to the Fuel tanks and filler pipes group, meaning it has been designed to work in direct contact with fuel and fuel vapors. The construction and material are adapted to typical operating conditions in the Ford Mondeo Mk5, including mechanical loads resulting from body movement and temperature changes.

Selecting parts by OEM number and interchangeable numbers allows for verifying compatibility with a specific body version and model year, which is particularly important when working with used components. This allows the mechanic or user to minimize the risk of installing a part with a similar but non-identical sealing profile.

Condition, installation, and practical service tips

The item is offered in used condition, which allows for economical repair while maintaining the manufacturer's original specifications. Before installation, it is recommended to thoroughly clean the housing in the bodywork and the fuel filler pipe itself to ensure even adhesion of the sealing surfaces.

During installation, it is worth paying attention to:

• correct positioning of the gasket relative to the pipe and the housing,
• absence of burrs, corrosion, or contaminants on the contact surfaces,
• leak check after the first refueling, especially in the area of the filler and wheel arch.

Such a service approach increases the durability of the repair and reduces the risk of having to disassemble the components again in the near future.

Fuel system service expansion and educational materials

If you are planning a comprehensive repair or upgrade of the fuel system area in your Ford and need other elements from the same group, such as filler pipes, connectors, or mounting elements, check out the available parts in the Ford fuel tanks and filler pipes category.

For a better understanding of how the entire fuel system works, how to select components by OEM numbers, and the principles of operation and regeneration, it is worth reading the guide Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which practically discusses diagnostics and part selection in modern vehicles.