BMW G20 LCI G21 G21 LCI Charging Flap Door Cover Panel Mineral Grau Metallic B39

BMW G20 LCI G21 G21 LCI Charging Flap Door Cover Panel Mineral Grau Metallic B39 is an original body component from the Fuel filler flaps and accessories group, designed for facelifted BMW 3 Series models. Finished in the factory Mineral Grau Metallic B39 color, it allows for an aesthetic and technically correct replacement of a damaged charging port cover without the need for additional painting.

Specifications and technical data

• SKU: 7433440-MG
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7433440
• Substitutable numbers: 41007433440, 7433440
• Color: Mineral Grau Metallic - B39
• Category: Fuel Flaps & Components

Purpose and function of the charging port cover

The presented charging port cover is an external body component responsible for protecting the charging port area and maintaining the consistent side line of the vehicle's bodywork. As a part from the Fuel filler flaps and accessories group, it provides protection against dirt, moisture, and mechanical damage in the port area, while also contributing to the visual continuity of the fender surface. The component has been designed specifically for the G20 LCI and G21 / G21 LCI generations, which ensures proper fitment to the body contours, correct operation of the hinge and opening mechanism, and compatibility with the factory mounting system.

Color and paint matching Mineral Grau Metallic B39

The cover is finished in Mineral Grau Metallic B39, used as a factory standard on this generation of BMW 3 Series. This makes it possible to maintain a uniform paint tone across the entire side of the vehicle, which is important for both aesthetic reasons and potential vehicle resale. Selecting a component in the same paint shade reduces the need for additional paint work, which shortens repair time and lowers costs. In practice, this means faster installation, better visual alignment, and the absence of shade differences that often occur when repainting individual panels.

Characteristics of the original BMW part

The charging port cover comes from the original BMW production line, which ensures dimensional compatibility with factory mounting points and correct interaction with other body components. The design was developed taking into account the specific stresses in the side area – frequent opening, exposure to temperature changes, and atmospheric factors. As a used aftermarket component, the cover represents a reasonable compromise between quality and repair cost. It allows for the restoration of full functionality and aesthetics of the charging port area while maintaining original geometry and factory appearance.

Practical application and benefits of installation

Installation of this cover is particularly beneficial in situations where there has been:

• mechanical damage to the cover as a result of a collision or scrape,
• cracking or deformation of the component making it difficult to close,
• a need for replacement due to spot corrosion or deep scratches. Using an original cover in the correct color allows for maintaining the vehicle's visual consistency while ensuring proper protection of the charging port against external factors. This is a particularly attractive solution for users who expect a technically correct repair while maintaining a reasonable budget. If you are planning a comprehensive repair or upgrade of the fuel filler and charging port area in your BMW and need other components from the same group, such as additional covers, flaps, or accessory guards, check out the available parts in the BMW fuel filler flaps and accessories category.

Technical support and knowledge about used parts

When selecting body components from the secondary market, it is worth considering not only the price but also the origin of the part, compatibility with the specific model version, and the condition of the paint surface. Proper verification of these aspects helps avoid installation and visual problems after the repair. If you are interested in a broader context of using used components in the fuel system and want to better understand what to look for when buying dismantled parts, check out the guide Fuel dosing problems: what to look for when buying a used injection pump and fuel rails?, which discusses the key principles of safely choosing used parts.