Fuel Filler Cap BMW F45 G20 G30 i3 I01 i8 I12 Neck Gas Tank Cover Black 7482906

Fuel Filler Cap BMW F45 G20 G30 i3 I01 i8 I12 Neck Gas Tank Cover Black is an original BMW fuel filler cap designed for the F45, G20, and G30 series, as well as the BMW i3 and i8 electric and hybrid vehicles. This item from the Fuel filler flaps and caps category ensures a tight seal for the fuel tank neck, supporting the proper operation of the fuel system and operational safety. Finished in a universal black color, it blends perfectly with the factory finish of the filler compartment.

Specifications and technical data

• SKU: 7483446-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7483446
• Substitutable numbers: 7483446, 16117483446, 7482906, 16117482906
• Color: Black
• Category: Fuel Tank Caps

Purpose and technical function

The presented fuel filler cap is an OEM BMW component designed to work with the factory fuel tank neck in selected F and G series models and the BMW i family of vehicles. Its task is to maintain the proper tightness of the system, protect against contaminants entering the filler neck, and stabilize fuel vapor pressure in accordance with the manufacturer's specifications.

A properly selected fuel filler cap is important not only for refueling comfort but also for the correct operation of the fuel system, reducing fuel evaporation, and protecting components in the filler area from moisture and dirt.

Construction, color, and fitment

The cap features a black finish, providing a neutral, factory-original look and consistency with most BMW fuel filler compartments. The design is adapted to standard filler sockets, ensuring that installation is predictable and repeatable without the need for modifying the tank neck.

A properly shaped gripping surface makes it easy to unscrew and tighten the cap even when wearing work gloves, and the fitted seal helps maintain the proper tightness of the connection. Using an original BMW solution minimizes the risk of thread or diameter mismatch, which can be a problem with aftermarket replacements.

Benefits of using an original BMW cap

Choosing an original BMW fuel filler cap from the Fuel filler flaps and caps category primarily ensures compatibility with the specific tank neck and maintains the parameters intended by the vehicle manufacturer. This is significant for both the durability of fuel system components and the long-term stability of engine performance.

Key advantages include:

• structural consistency with the factory BMW fuel filler system,
• black color matched to the standard filler compartment finish,
• maintenance of the designed tightness and protection against contaminants,
• reduction of the risk of installation errors typical of unverified replacements.

Condition, verification, and selection by part number

The item is sourced from disassembly and is offered as a used part, allowing for an economical replacement while maintaining original BMW specifications. Before installation, it is recommended to perform a standard visual inspection of the seal and working surfaces to confirm that the cap meets the requirements of the given vehicle and shows no signs of mechanical damage.

It is worth basing the selection of this component on the OEM number or interchangeable numbers assigned to a specific BMW model and production year. This allows for precise verification of compatibility with the fuel tank neck and avoids issues with installation or sealing.

Related fuel system components and technical knowledge

Replacing the fuel filler cap is often associated with diagnosing the entire fuel system, especially in vehicles used intensively or in variable weather conditions. It is worth paying attention to the condition of the filler neck, vent hoses, and sealing elements around the tank.

To better understand the relationships between the cap, tank, pump, and injectors, and to learn the principles of selecting parts by OEM number, the following article will be helpful: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. The information contained therein facilitates informed planning of repairs and upgrades.

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