Ford Transit Custom Mk8 Fuel Flap Under Trim Magnetic Metallic-7J GK21-V20206-AA

Ford Transit Custom Mk8 Fuel Flap Under Trim Magnetic Metallic is an original body component from the Fuel filler flaps and accessories category, designed for installation on the left side of the vehicle. Precise fitment and the factory Magnetic Metallic – 7J color allow for an aesthetically pleasing and technically correct replacement of a damaged flap without the need for additional painting.

Specifications and technical data

• SKU: GK21-V20206-AA-MGT
• Mark: Ford
• Condition: Used
• OEM Part Number: GK21-V20206-AA
• Substitutable numbers: GK21-V20206-AA, GK21V20206AA, 2182393, GK21-V20206-BA, GK21V20206BA
• Location on the vehicle: Left
• Color: Magnetic Metallic - 7J
• Rim width: 7
• Category: Fuel Flaps & Components

Purpose and function of the fuel filler flap

The fuel filler flap in the Ford Transit Custom Mk8 is responsible for protecting the fuel filler neck from dirt, moisture, and mechanical damage. A correctly selected component ensures a tight seal, stable hinge operation, and a consistent appearance of the side body panel. Using an original flap from the same model series minimizes the risk of issues with hinge geometry or improper fitment against the bodywork.

Magnetic Metallic – 7J color and visual matching

The Magnetic Metallic – 7J finish allows for maintaining a uniform paint line along the entire side of the vehicle. This is particularly important for post-accident repairs or spot renovations, where color differences are immediately visible. The original paint on the flap is factory-matched to the Ford color palette, which facilitates integration with the existing body paint and reduces the need for additional paintwork.

Vehicle placement and installation aspects

The component is designed for installation on the left side of the vehicle, which is significant for both hinge geometry and the shape of the stampings. As a result, the flap works with the factory opening and closing mechanism, maintaining the correct operating angle and proper pressure against the body. This facilitates installation in workshop conditions – the mechanic can use existing mounting points without the need for structural modifications.

Product characteristics and practical application

As an item from the Fuel filler flaps and accessories category, the flap serves both a protective and aesthetic function. In daily use, it secures the fuel filler area against mud, road salt, and minor impacts, while maintaining a consistent look for the side of the vehicle. This solution is particularly important for commercial vehicles such as the Ford Transit Custom Mk8, where the vehicle serves as a company's business card and operates in varied road conditions.

Fuel system and parts selection

When replacing components within the fuel system – from the flap and cap to components related to the tank – it is worth ensuring the correct selection of parts based on factory numbers and compatibility with the specific body version. To better understand the relationships between individual fuel system components and the principles of their diagnostics and selection, it is worth checking out our guide: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Repair expansion and selection of Ford fuel filler flaps

If you are planning a comprehensive repair or upgrade of the fuel filler area in your Ford and need other items from the same group, such as additional flaps, covers, or protective accessories, check out the available parts in the Ford fuel filler flaps and accessories category.

Purchasing a used flap – practical aspects

Choosing a used, original component allows you to combine cost control with the preservation of factory fitment. This is a beneficial solution for fleet repairs and workshops specializing in servicing the Ford Transit Custom Mk8, where both durability and installation repeatability are valued. If you want to plan your purchases of body, interior, and mechanical components in one place, our guide on sourcing used parts may be helpful: Comprehensive supply: how to source used car parts in one place.