BMW F97 F98 G01 G02 G26 G45 Fuel Hose Pipe Line M40i B58D 3.0 Petrol 8678407

BMW F97 F98 G01 G02 G26 G45 Fuel Hose Pipe Line M40i B58D 3.0 Petrol is an original fuel system component designed for BMW B58D family petrol engines. The precisely selected geometry of the hose ensures stable fuel delivery and proper cooperation with other engine components. This is a solution for users who expect factory fitment, operational reliability, and compliance with the manufacturer's requirements.

Specifications and technical data

• SKU: 8678407
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8678407
• Substitutable numbers: 8678407, 13538678407
• Fuel type: Petrol
• Part type: Line
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel system

The fuel hose in the B58D petrol engine is responsible for the safe and leak-proof delivery of fuel to the fuel system components, operating under variable loads and a wide temperature range. For BMW F97, F98, G01, G02, G26, and G45 series models, a correctly selected hose is crucial for maintaining stable engine operation, proper fuel pressure, and consistent combustion parameters. The original design of the hose minimizes the risk of leaks, unwanted vibrations, and stresses resulting from engine operation and chassis movement. As a result, the fuel system maintains its characteristics, and the engine can operate under the conditions intended by the manufacturer.

Benefits of using an original fuel hose

Using a fuel hose dedicated to the M40i B58D unit in BMW cars from the listed series provides a number of practical benefits:

• maintaining the factory routing of the hose, which facilitates installation and servicing of the fuel system,
• properly selected flexibility and rigidity, reducing the risk of micro-cracks and abrasions,
• compatibility with the petrol supply system, including requirements regarding material resistance to fuel and its additives,
• maintaining engine performance parameters in accordance with the manufacturer's specifications, without the need for adaptations or modifications. For the user, this means stable engine operation, predictable performance, and a reduction in the risk of failures related to the fuel system.

Component condition and installation aspects

The offered fuel hose is a used part, which in practice allows for an economical replacement of a damaged or leaking section of the fuel system while maintaining the original BMW specification. This type of part is particularly attractive for repairs where matching the specific engine and chassis configuration is key, while a reasonable service cost is also important. The hose has been designed as a component intended for installation in factory mounting points, which facilitates the mechanic's work and reduces the time required for replacement. The lack of need for modifications to the fuel installation promotes safety and compliance with the vehicle manufacturer's guidelines.

Application in petrol engines

The fuel system in BMW B58D family petrol engines operates under high requirements regarding tightness and pressure resistance. The fuel hose dedicated to these types of units is designed to work with modern engine control systems that precisely dose fuel depending on load, temperature, and driving conditions. The use of the correct hose has a direct impact on:

• fuel pressure stability across the entire RPM range,
• correct mixture dosing in both economic and sport modes,
• reducing the risk of fuel leaks in the engine compartment. For the vehicle owner, this means more predictable car behavior and maintaining operational parameters at a level close to factory standards.

System expansion – other BMW lines, hoses, and pipes

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

Technical knowledge and prevention

When working on the fuel system, it is also worth paying attention to other critical vehicle systems, such as the engine cooling system, which together influence the durability of the engine. To deepen your knowledge about the relationship between engine operating temperature, load, and component lifespan, the following article may be helpful: Engine cooling system – overheating, repair, and used radiators. This makes it easier to plan comprehensive service maintenance and reduce the risk of costly failures.