BMW 1 X3 3 5 Series E83 E60 E61 E87 E90 E91 Fuel Tank Filler Cap Cover DIESEL

BMW 1 X3 3 5 Series E83 E60 E61 E87 E90 E91 Fuel Tank Filler Cap Cover DIESEL is an original component from the Fuel filler flaps and caps group, designed for diesel fuel systems. It ensures a tight seal of the filler neck, stabilizes the operating conditions of the fuel system, and helps reduce fuel evaporation during daily use.

Specifications and technical data

• SKU: 7193381-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7193381
• Substitutable numbers: 16117193381, 7193381, 7786331, PK, 16115B99378, 1599378
• Fuel type: Diesel
• Category: Fuel Tank Caps

Purpose and technical function

The presented cap is dedicated to BMW E60, E87, and E90 series models with diesel engines. As a component of the diesel fuel supply system, it is responsible for a controlled, airtight closure of the filler neck, which is important for safety, maintaining pressure stability in the tank, and protecting against contaminants entering the fuel.

A properly selected fuel filler cap reduces the risk of moisture, dust, and fine particulate matter entering the tank, which translates into more predictable operation of the fuel and injection system. This is particularly important in modern diesel units, which are sensitive to fuel quality.

Construction and fitment for BMW

This cap comes from the BMW parts line, ensuring it maintains factory manufacturing standards and geometry matched to the stock fuel filler necks in the listed generations. The design is prepared for use with systems intended for diesel fuel, which facilitates correct identification during refueling and servicing.

The original mounting and properly selected seal allow for secure tightening of the cap without placing excessive stress on the filler neck threads. As a result, installation and removal during refueling remain consistent, and the risk of damaging the filler neck is minimized.

Benefits of using an original BMW cap

Using an original fuel filler cap in BMW vehicles with a diesel engine offers a number of practical benefits:

• maintaining compatibility with the factory fuel and venting system,
• maintaining filler tightness at the level specified by the manufacturer,
• reducing the risk of contaminants entering the tank,
• easy identification of the fuel type thanks to the design intended for Diesel.

For users who value the consistency of components used, choosing such an element allows maintaining the vehicle's character in accordance with the manufacturer's specifications, while ensuring predictable fuel system behavior in the long term.

Condition and service application

The item comes from the secondary market, making it an attractive solution for maintenance repairs when the existing cap has suffered mechanical wear or damage. Replacing the cap is one of the simplest service tasks, and a correctly selected component allows for the quick restoration of full filler functionality without interfering with other system elements.

In the case of intensively used vehicles, such as fleet cars or cars used on long routes, a functional fuel filler cap is important for maintaining stable fuel storage conditions in the tank, which supports the smooth operation of the power unit.

Fitment within the BMW Fuel filler flaps and caps category

If you are planning a comprehensive repair or upgrade of the fuel system area in your BMW and need other elements from the same group, such as additional caps, filler flaps, or related closing components, check out the available parts in the BMW Fuel filler flaps and caps category.

Technical support and knowledge about the fuel system

When selecting components related to diesel engine supply, it is worth considering the general condition of the fuel system, including injectors, the pump, and the tank. To better understand the relationships between individual components and consciously plan service work, you can use the advice contained in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.