BMW G30 G31 G11 G12 G31 B57 Diesel Fuel Lines Engine Compartment 8571676

BMW G30 G31 G11 G12 G31 B57 Diesel Engine Fuel Lines are an original part of the diesel fuel supply system, designed for BMW G-series diesel engines with the B57 engine. This product from the Lines, Hoses, and Tubes category ensures proper fuel routing in the engine bay, supporting stable injector system operation and safe working pressure. Thanks to their factory geometry and precise fit for specific BMW model generations, these lines allow for accurate, hassle-free replacement of worn components.

Specifications and technical data

• SKU: 8571676
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8571676
• Substitutable numbers: 8571676, 13538571676
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Intended Use and Role in the Fuel System

This set of fuel lines is dedicated to the B57 diesel engine in BMW 5 Series G30/G31 and 7 Series G11/G12 models. The component is responsible for the controlled transport of diesel fuel between individual components of the fuel supply system in the engine bay, which is crucial for correct pressure, fuel atomization quality, and the overall smoothness of the engine's operation.

Properly selected fuel lines in a Diesel engine reduce the risk of leaks, pressure drops, and starting problems, while also supporting uniform injector operation under high loads and during prolonged use.

Construction, Fit, and Installation

The offered set of lines has been designed as an original part for the BMW fuel system, which translates to proper routing of fuel lines within the engine bay, maintaining factory mounting points, and compatibility with the B57 engine's ancillaries. This ensures an organized installation process, without the need for modifications or length adjustments of the lines.

Precise connection ends and appropriately selected working diameters support connection sealing and stable flow parameters. In practice, this means a reduced risk of fuel leaks and the maintenance of correct operating conditions for the injection system across a wide range of temperatures and loads.

Condition, Verification, and Service Application

The item is offered as a used part, making it an attractive solution for operational repairs and restoring the fuel supply system's functionality in vehicles with mileage. This type of component is particularly useful in situations where the lines have suffered mechanical damage, the engine bay has been tampered with, or components need replacement after the removal of other assemblies.

Choosing fuel lines that comply with the original BMW specification helps maintain the fuel system's integrity, avoid problems with fitting universal aftermarket parts, and keep the B57 engine's operating parameters at the level intended by the manufacturer.

Benefits of Using Genuine BMW Lines

• maintaining the factory geometry of line routing in the engine bay,
• compatibility with the B57 diesel engine and its dedicated ancillaries,
• stable fuel flow conditions in the diesel system,
• reduced risk of leaks and fuel pressure issues,
• easier installation due to precise fit with original mounting points.

For the user, this means more predictable operation, a lower risk of fuel system-related failures, and the ability to perform repairs in a manner closely aligned with the manufacturer's service procedures.

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

For owners of newer BMW models interested in turbocharging and intercooler systems, the Global Parts service and technical guide may be useful – detailed checklists, installation tips, and compatibility information can be found in the article BMW Code B58 – Pre-Purchase Checklist for Turbocharger and Intercooler for BMW 3 Series (G20).