Fuel Line BMW G30 G31 G32 GT Diesel B47 Engine Compartmet Fuel Hose 8579957

Fuel Line BMW G30 G31 G32 GT Diesel B47 Engine Compartmet Fuel Hose are original diesel fuel system components designed for B47 diesel engines. Thanks to their factory geometry and precise fit for specific BMW series, they ensure stable fuel delivery from the injection system to the engine, supporting proper engine operation and reducing the risk of leaks.

Specifications and technical data

• SKU: 8579957
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8579957
• Substitutable numbers: 8579957, 13538579957
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel supply system

The fuel lines in the B47 diesel engine are responsible for the precise transport of fuel at the appropriate pressure between the components of the injection system. In diesel engines, the correct flow of diesel fuel has a direct impact on engine refinement, dynamics, and exhaust emissions, which is why the tightness and proper routing of the lines are crucial for the durability of the entire engine.

This element belongs to the Lines, hoses, and pipes group, meaning it is an integral part of the medium transfer system in the engine compartment. In the case of diesel engines, even minor damage to the line can result in pressure drops, starting problems, smoke, or uneven engine operation.

Compatibility with the B47 diesel engine

The presented set of fuel lines has been designed to work with the B47 diesel engine used in BMW G30, G31, and G32 GT models. Using a dedicated solution instead of universal replacements allows for maintaining factory routing, proper bending radii, and correct mounting points in the engine compartment.

Such a fit reduces material stress, minimizes the risk of chafing against adjacent components, and facilitates the servicing of other sub-assemblies within the engine unit. For the user, this means stable operation of the fuel system and greater predictability of engine behavior over a long period of operation.

Characteristics of the used component

The offered set of BMW fuel lines comes from dismantling, which allows for an economical replacement of fuel system components while maintaining the original manufacturer's specifications. The used component is a particularly attractive solution for maintenance repairs where the priority is to maintain the factory design at reasonable service costs.

Choosing original lines from the secondary market is often preferred by workshops specializing in the BMW brand, as it enables the installation of parts with known geometry and build quality, without the need for modifying the fuel system or additional bracket adjustments.

Benefits of using original BMW fuel lines

• Maintaining the factory routing of lines in the engine compartment, which facilitates trouble-free servicing.
• Reducing the risk of leaks and pressure drops in the diesel engine fuel system.
• Better compatibility with the factory injection system, which translates into stable operation of the B47 unit.
• An economical repair solution thanks to the use of a used component while maintaining BMW specifications.

Installation and operational tips

When installing fuel lines in a diesel engine, it is recommended to follow the routing sequence consistent with the factory layout and to use the appropriate tightening torques for the connectors. It is worth paying attention to:

• proper seating of the lines in holders and guides,
• checking for leaks after the first engine start,
• avoiding twisting or excessive bending of the lines during installation.

This approach allows for fully utilizing the potential of the original component and reduces the risk of subsequent fuel leaks or starting problems.

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

For diesel engine users who want to better understand the impact of the fuel system condition on engine performance, an article discussing the symptoms and consequences of injection problems may be helpful – you can find it here: Diesel injector faults – how to recognize them and the risks of neglecting them.