BMW G30 Fuel Filler Pot Flap Cover Carrier Cap Housing 7387939

BMW G30 Fuel Filler Pot Flap Cover Carrier Cap Housing is an original body component designed for the rear section of the vehicle, responsible for the stable mounting of the fuel flap and the proper guidance of the fuel cap. This component from the Fuel Flaps and Caps category ensures proper closing, protection of the filler neck, and an aesthetic finish to the refueling area of your BMW. Thanks to its factory design, it is a solution technically matched to the specifics of the G30 model, facilitating the precise replacement of a damaged part.

Specifications and technical data

• SKU: 7387939
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7387939
• Substitutable numbers: 7387939, 51177387939, KD
• Location on the vehicle: Rear
• Category: Fuel Tank Caps

Purpose and function of the component

The presented BMW G30 Fuel Filler Pot Flap Cover Carrier Cap Housing is dedicated to the rear body section of the BMW G30 series, where it is responsible for keeping the flap in the correct position and for the safe guidance of the cap and filler neck. This component:

• stabilizes the flap during opening and closing,
• ensures proper fitment with the fender panel,
• protects the fuel filler area from excessive dirt,
• reduces the risk of looseness and improper closing of the flap.

Thanks to a design consistent with BMW factory standards, the housing works with the original flap mechanism and cap, which translates into predictable behavior during daily operation.

Construction and fitment for the BMW G30

The fuel filler housing has been designed as a carrier and guide for the flap and the components securing the cap. The geometry of the part is matched to the BMW G30 body, which facilitates installation in factory mounting points without the need for modifications. Using an original design means:

• compatibility with the stock fuel flap,
• correct alignment relative to the rear fender,
• preservation of body lines and mounting gaps,
• the ability to use existing mounts and hardware.

Such fitment reduces the time required for replacement and minimizes the risk of adjustment issues after installation.

Condition, origin, and benefits of using a used part

The offered BMW fuel filler housing comes from the used parts segment, which allows for an economical repair while maintaining the factory design. Choosing an original, used component brings several practical advantages:

• maintaining compliance with factory assembly tolerances,
• avoiding problems typical of aftermarket replacements with poorer fitment,
• the ability to restore the correct operation of the flap without interfering with the bodywork.

This solution will work well both for post-accident repairs and for replacing a worn or damaged housing that causes problems with the closing or stability of the flap.

Application in the fuel system and operation

The fuel filler housing, although a body component, has a direct impact on the comfort of operating the fuel system. A correctly installed part:

• facilitates access to the filler during refueling,
• limits the ingress of contaminants around the cap,
• supports maintaining the tightness of the filler area in combination with the appropriate cap and flap.

For drivers who want to better understand the relationships between body elements and the fuel system, an article describing the diagnostics and operation of the entire system will be useful – detailed information can be found in the material Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Support in selecting and expanding the BMW fuel filler area

If you are planning a comprehensive repair or upgrade of the fuel filler area in your BMW and need other elements from the same group, such as additional flaps, various cap variants, or mounting housings, check out the available parts in the BMW Fuel Flaps and Caps category.

Summary

BMW G30 Fuel Filler Pot Flap Cover Carrier Cap Housing is a practical choice for users who want to restore the correct operation and aesthetics of the rear fuel filler area without giving up the factory design. Its original origin, fitment to the G30 body, and the ability to mount it in existing attachment points make it a technically safe and functional solution for daily use. Thanks to this, you can effectively complete the repair of the fuel filler area while maintaining a consistent look and ease of use for your BMW.