BMW 5 Series E60 E61 M57N M57N2 Diesel Engine Fuel Delivery Feed Line 7799972

BMW 5 Series E60 E61 M57N M57N2 Diesel Engine Fuel Delivery Feed Line is an original fuel system component designed for M57N and M57N2 Diesel engines. Engineered by BMW, it ensures stable fuel delivery to the engine, which translates into smooth engine operation and safe pressure throughout the entire system.

Specifications and technical data

• SKU: 7799972
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7799972
• Substitutable numbers: 13537799972, 7799972, 13537796797, 13537790066, 13537793575, 7796797, 7790066, 7793575
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel system

The offered line belongs to the Lines, Hoses and Pipes category and serves as the fuel feed line in BMW 5 Series E60 and E61 diesel engines equipped with M57N and M57N2 units. It is responsible for the safe transport of diesel fuel between fuel system components, minimizing the risk of pressure drops, air ingress, or leaks.

Thanks to its factory fitment for specific generations of diesel engines, the geometry of the line, connection diameters, and routing relative to engine accessories are consistent with the original BMW design, which facilitates installation and reduces the risk of material stress during engine operation.

Benefits of using an original BMW line

Using an original fuel feed line in a diesel engine fuel system offers a number of practical benefits:

• factory fitment for M57N/M57N2 engines in BMW 5 Series E60/E61, with no need for installation modifications,
• preservation of the manufacturer-designed routing, which limits the risk of chafing and vibrations,
• compatibility with fuel system accessories designed for Diesel fuel,
• stable operating conditions for the fuel system, promoting smooth engine performance.

Choosing an original BMW component from the Lines, Hoses and Pipes group is particularly important in diesel engines, where the precision of fuel dosing and system tightness have a direct impact on the refinement, performance, and wear of the power unit.

Condition, verification, and service application

The item is offered as a used part, which allows for cost-effective fuel system repair while maintaining the original manufacturer specifications. This type of feed line is suitable both for the typical replacement of a worn or damaged section of the installation and for comprehensive diesel engine maintenance when it is necessary to restore the tightness of the entire fuel path.

Due to the preservation of the original design, the line can be used as a direct replacement for the factory-installed component, which facilitates work for workshops specializing in BMW service as well as users servicing their own cars.

Part selection by numbers and compatibility

The line has a dedicated OEM part number and associated replacement numbers, which significantly facilitates the identification and selection of the correct component for a specific engine configuration. When matching, it is worth comparing the markings with the vehicle documentation or the removed component to ensure full compatibility with the given version of the M57N or M57N2 unit.

For users and workshops, this means the possibility of precise component selection without the need to use universal lines, which often require modifications and do not guarantee the same routing and tightness as an original BMW component.

Expanding repairs within the BMW fuel system

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 feed lines, fuel return sections, or flexible connecting pipes, check the available parts in the BMW Lines, Hoses and Pipes category.

If you want to deepen your knowledge on the safe selection of used components in critical vehicle systems, it is worth reading the guide: Second-hand braking system: how to safely choose discs, calipers, and ABS?, which shows what to look for when purchasing components from the secondary market in a specialized store.