Ford Mustang Mk6 Boot Trunk Tailgate Sealing Rubber Gasket Seal FR3B-63438A00-AC

Ford Mustang Mk6 Boot Trunk Tailgate Sealing Rubber Gasket Seal is an original body component designed for the rear of the vehicle, responsible for a tight closure of the trunk lid. The carefully designed rubber profile ensures a stable fit to the bodywork, limiting the ingress of water, dust, and noise into the luggage compartment. As a result, the seal helps maintain proper operating conditions and improves the comfort of daily vehicle use.

Specifications and technical data

• SKU: FR3B-63438A00-AC
• Mark: Ford
• Condition: Used
• OEM Part Number: FR3B-63438A00-AC
• Substitutable numbers: FR3B-63438A00-AC, FR3B63438A00AC, 5360656
• Location on the vehicle: Rear
• Part type: Bootlid
• Category: Boot & Hatch Lids

Purpose and function in the Ford Mustang Mk6

The presented seal is a component from the Trunk lids and rear parts group, mounted in the rear body section of the sixth-generation Ford Mustang. Its task is to create a flexible, continuous barrier between the trunk lid and the body frame, which reduces the risk of moisture entering the interior and helps maintain stable lid closure geometry.

A properly selected rubber also contributes to:

• damping vibrations and rattles originating from the lid's operation,
• reducing aerodynamic noise in the rear of the vehicle,
• protecting the paintwork in the contact area between the trunk lid and the body.

Construction and material properties

The seal is made of flexible rubber material with parameters adapted for operation in varying weather conditions. The material structure has been designed to maintain elasticity during repeated opening and closing of the lid, while ensuring proper pressure against the metal surfaces.

Key performance features include:

• stable flexibility over a wide temperature range,
• resistance to typical operational factors, such as moisture and road dirt,
• a profile matched to the geometry of the rear body section of the Mustang Mk6.

Benefits of using an original seal

Using an original trunk lid rubber in the Ford Mustang Mk6 allows for maintaining the factory sealing and acoustic parameters of the rear body section. In practice, this means:

• better protection of the trunk upholstery against dampness,
• reducing the risk of corrosion in the area of the lid edge and the loading sill,
• more predictable lid closing thanks to the proper resistance of the seal.

This component is particularly important during post-accident repairs, replacement of corroded body sections, or restoring tightness after adjusting the hinges and lid lock.

Installation area and service application

The seal is intended for installation in the rear of the vehicle, around the perimeter of the trunk opening. Proper placement on the body flange ensures even pressure around the entire circumference, which is crucial for maintaining tightness and correct lock operation. Replacement of this component is recommended in case of visible cracks, loss of elasticity, or leaks manifesting as water appearing in the trunk.

During body and paint work in the rear section of the Mustang Mk6, using an original seal allows for achieving a consistent assembly effect with other body components and facilitates subsequent lid adjustment.

Body repairs and selection of used components

In the case of comprehensive body repairs, it is worth considering the use of used body parts and accessories, which often better reflect factory geometry than some aftermarket replacements. You can find more on this topic in the article Post-accident repair of your car: why are used body parts a better choice than replacements?, where practical differences between used parts and replacements are discussed in the context of fit quality and durability.

If you are planning a comprehensive repair or upgrade of the rear body zone in your Ford and need other components from the same group, such as lids, hinges, or trunk lid locks, check the available parts in the Ford Trunk lids and rear parts category.