Breather Pipe BMW F90 M5 F92 M8 Petrol Fuel Tank Suction Hose Line 7852339

Breather Pipe BMW F90 M5 F92 M8 Petrol Fuel Tank Suction Hose Line is an original component from the Lines, hoses and pipes group, designed for the fuel system in petrol-powered BMW vehicles. This used OEM component ensures proper fuel tank ventilation, which promotes stable fuel system operation and reduces the risk of abnormal pressure levels in the tank.

Specifications and technical data

• SKU: 7852339
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7852339
• Substitutable numbers: 7852339, 13907852339, KD
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Purpose and function of the breather pipe

The fuel tank breather pipe in BMW F90 M5 and F92 M8 models running on petrol fuel is responsible for the controlled flow of fuel vapors between the tank and other system components. A properly functioning pipe:

• stabilizes pressure in the fuel tank during driving and refueling,
• limits the possibility of vacuum or overpressure buildup in the tank,
• supports the correct operation of the fuel supply and engine management systems,
• helps maintain the integrity and safety of the fuel system.

Thanks to its precise geometry and fitment for the specific BMW platform, the pipe is prepared to operate under the demanding thermal and mechanical conditions typical for the high-performance engines used in the M5 and M8.

Benefits of using an original BMW pipe

Using an original breather pipe instead of a worn or damaged component allows you to maintain the factory performance parameters of the fuel system. Key advantages include:

• Precise fitment – the correct length, diameter, and shape of the pipe facilitate installation at original mounting points.
• Compatibility with the petrol system – the material and construction are designed to work with petrol vapors under specific pressure conditions.
• Consistency with engine control unit calibration – proper tank ventilation supports stable engine performance parameters.
• Interchangeability – facilitates part selection within the same family of BMW components.

By choosing this element, you reduce the risk of issues such as refueling difficulties, unpleasant fuel odors, or errors related to the evaporative emission control system.

Condition, origin, and practical application

The offered pipe comes from the line of original BMW components and is marked as a used OE part. This type of part is a good solution in situations where the factory pipe has suffered mechanical damage, cracking, abrasion, or shows signs of material aging.

The fuel tank breather pipe in the BMW F90 M5 and F92 M8 is of particular importance in high-power vehicles, where the fuel system operates under higher loads. Replacing a worn component with an original pipe from the same design group helps maintain engine stability, especially during dynamic driving and frequent load changes.

Installation recommendations and part selection

Before installing the pipe, it is worth verifying compatibility with the specific vehicle equipment version and the fuel system of the given unit. It is recommended to:

• check the routing of the existing installation and mounting points,
• assess the condition of other lines, hoses, and pipes around the tank,
• use new clamps or fasteners if required by the manufacturer,
• perform a fuel system leak test after installation.

This ensures that the breather pipe can operate under optimal conditions, and the entire fuel system will maintain proper tightness and functionality.

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 supply lines, return hoses, or breather pipes, check the available parts in the BMW Lines, hoses and pipes category.

For drivers who are also thinking about improving driving comfort and cabin aesthetics, practical tips on choosing interior components from the secondary market may be useful – you can find them in the article Premium interior for half the price: second-hand seats, steering wheels, and multimedia.