BMW G20 G21 G22 G26 G28 G30 Fuel Tank Breather Pipe Hose Line 8671404

BMW G20 G21 G22 G26 G28 G30 Fuel Tank Vent Hose is an original fuel system component from the Hoses, Pipes, and Tubes group, designed for precise fuel vapor discharge. Thanks to its factory geometry and fit for BMW G-series platforms, it ensures stable system operation and reduces the risk of leaks and diagnostic errors.

Specifications and technical data

• SKU: 8671404
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8671404
• Substitutable numbers: 8671404, 13908671404
• Part type: Hose
• Category: Hoses, Lines & Pipes

Purpose and Function in the Fuel System

The fuel tank vent hose in BMW G20, G21, G22, G26, G28, and G30 models is responsible for controlled fuel vapor discharge and fuel tank pressure stabilization. A properly functioning element of this type:

• prevents overpressure or underpressure in the tank,
• reduces the risk of fuel and vapor leaks,
• supports the correct operation of the leak detection system,
• contributes to uniform fuel supply to the engine.

By maintaining the original hose routing and appropriately selected inner diameter, the fuel system retains the parameters intended by the vehicle manufacturer.

Construction and Fit for BMW G-Series

The offered hose belongs to the Hoses, Pipes, and Tubes group, meaning it is designed for operation in a fuel environment and contact with gasoline or diesel vapors. The hose construction includes:

• a shape adapted to the installation space in the body and around the tank,
• appropriate flexibility for easy installation and removal,
• adaptation for operation in variable temperatures and body vibrations.

As a component dedicated to specific generations of BMW 3 and 5 Series G versions, the hose allows for maintaining the original fuel line routing without the need for modifications or adapters.

Benefits of Using an Original BMW Hose

Using an original fuel tank vent hose in BMW vehicles offers a range of practical service and operational benefits:

• Factory Fit – correct length, diameter, and shape minimize the risk of stress and leaks.
• Stable Fuel System Operation – proper tank venting reduces engine control unit errors related to the EVAP system.
• Hassle-Free Installation – the hose is prepared to work with original connectors and mounting brackets in the body.
• Compatibility with Other System Components – maintaining the factory configuration facilitates subsequent diagnostics and servicing.

Condition, Verification, and Service Application

The item is offered as a used part, allowing for economical fuel system repair while maintaining the original manufacturer's specifications. This type of hose is particularly suitable in situations where:

• the existing hose has suffered mechanical damage (cracks, abrasions),
• there are leaks in the vicinity of the fuel tank,
• diagnostic errors related to tank venting occur.

By retaining its original construction, the hose can be used for standard replacement of a damaged component as well as during more extensive service work on the fuel system.

Related Components and Additional Information

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 flexible hose sections, rigid fuel pipes, or vent sections, check the available parts in the BMW Hoses, Pipes, and Tubes category.

If you are interested in a broader context of using used parts in vehicles and want to better plan your car's service strategy, a practical guide for drivers might be helpful: When is it Worth Replacing an Alternator with a Used One: A Practical Guide for Drivers.