BMW 7 Series E65 E66 E67 Fuel Supply Tank Return Line Pipe 6752840

BMW 7 Series E65 E66 E67 Fuel Supply Tank Return Line Pipe is an original fuel system component designed for the luxury BMW 7 Series sedans of the E65, E66, and E67 generations. The precisely selected geometry of the pipe ensures stable fuel flow, while the use of factory connectors allows for a secure, leak-proof connection with other components. This is a practical solution for users who want to restore the proper operation of the fuel system while maintaining factory assembly standards.

Specifications and technical data

• SKU: 6752840
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6752840
• Substitutable numbers: 16116752840, 6752840, AS
• Category: Hoses, Lines & Pipes

Technical characteristics of the fuel pipe

The pipe belongs to the Lines, hoses, and pipes group, which are components responsible for the safe transport of operating media in the vehicle. In this case, it is a section of the fuel system tasked with routing fuel between selected installation components. The design of the pipe is adapted to the specific layout of the installation in BMW E65, E66, and E67 models, which minimizes the risk of stress, chafing, and leaks resulting from improper routing.

Its original BMW origin ensures the preservation of appropriate internal and external diameters, proper flexibility, and compatibility with factory quick-connectors and mounting brackets. As a result, the pipe works with the stock fuel pump, filter, and fuel rail without the need for modifications or the use of adapters.

Function in the BMW 7 Series fuel system

In BMW 7 Series E65–E67 generation vehicles, the fuel system operates under specific pressure and requires the maintenance of proper patency and tightness of all sections. BMW 7 Series E65 E66 E67 Fuel Supply Tank Return Line Pipe is responsible for:

• stable fuel routing in the designated section of the installation,
• maintaining connection tightness thanks to matched end fittings,
• reducing vibrations and oscillations through proper routing and flexibility,
• maintaining compatibility with factory brackets and covers.

Replacing the pipe with a component that meets the original specification is particularly important when symptoms such as the smell of fuel around the bodywork, visible signs of leakage, or starting problems resulting from a loss of system pressure occur.

Benefits of using an original BMW pipe

Using a pipe from the BMW group instead of universal replacements brings a number of practical operational benefits:

• Factory fitment – the pipe is prepared for the specific E65/E66/E67 platform, which facilitates installation and eliminates the need to adjust length or shape.
• Consistency with the fuel system – compatibility with stock connectors, clamps, and installation routing is maintained, which affects the durability of the entire system.
• Stable operating parameters – the appropriate diameter and design of the pipe support correct fuel pressure and even supply to the engine unit.

This solution is especially recommended for repairs performed on vehicles used daily, where predictability of operation and compliance with service documentation are important.

Component condition and service application

The offered fuel pipe is an aftermarket component, which allows for economical repair while maintaining the original design. This type of part will prove useful both for locating and eliminating leaks, as well as during major service work within the fuel supply system, e.g., when replacing the pump, filter, or other installation sections. Thanks to the preservation of the factory shape and mounting points, installation is predictable and can be performed under standard workshop conditions.

Expanding work within the BMW fuel system

If you are planning a comprehensive repair or upgrade of the fuel system area in your BMW and need other components from the same group, such as additional lines, flexible hoses, or rigid supply pipes, check the available parts in the BMW Lines, hoses, and pipes category.

For users interested in a broader perspective on the operation and servicing of modern engine units, including issues related to engine accessories and the fuel supply system, the following guide article may be helpful: Reliability under the star sign – how to take care of engine accessories in popular Mercedes-Benz C-Class and E-Class models?. Although it concerns a different brand, it discusses universal principles of caring for key components that can also be applied to advanced BMW designs.