Fuel Line BMW F80 M3 F82 M4 S55 Petrol High Pressure Supply Feed Pipe 7848563

Fuel Line BMW F80 M3 F82 M4 S55 Petrol High Pressure Supply Feed Pipe is an original fuel system component designed for the S55 engine in BMW M-series sports models. Thanks to its factory geometry and precise fitment, it ensures stable fuel delivery and proper integration with other engine components. It is a practical choice for maintenance, repair, or upgrades of the fuel system in high-performance vehicles.

Specifications and technical data

• SKU: 7848563
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7848563
• Substitutable numbers: 7848563, 13537848563
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel system

The fuel line dedicated to the S55 engine in BMW F80 M3 and F82 M4 models is responsible for the safe transport of petrol between fuel system components. The design, tailored to the specifics of the turbocharged unit, ensures proper sealing and resistance to the operating pressure typical of modern high-power petrol engines.

This element is part of the factory fuel system, which helps maintain the engine's stock performance parameters, stable fuel pressure, and correct interaction with the control electronics. Replacing a worn or damaged line with an original component helps reduce the risk of leaks and issues with starting or engine operation.

Construction and fitment for BMW F80 M3 / F82 M4

The line was designed by BMW specifically for the S55 engine architecture and the engine bay of the F80 and F82 chassis. This ensures proper routing around manifolds, accessories, and body components, without the need for modifications or fitting universal replacements. The correct length, shape, and mounting points facilitate quick installation and maintain factory service ergonomics.

As an element from the Lines, hoses and pipes group, this section of the fuel system works with other pipes and connectors to form a cohesive power supply system. Proper routing of the line reduces the risk of chafing, excessive vibration, and contact with hot engine parts.

If you are planning comprehensive fuel system maintenance or are looking for other similar parts, check out related components in the Lines, hoses and pipes category to select components that are structurally compatible with your BMW.

Operating characteristics in the S55 petrol engine

The fuel system in the S55 engine operates under demanding conditions typical of modern turbocharged petrol units. The fuel line must maintain a seal under variable pressure, high temperatures in the engine bay, and dynamic loads during track or sports driving. Using an element designed for petrol fuel allows for maintaining stable injection performance and reducing the risk of power drops resulting from fuel supply issues.

The proper condition of fuel lines has a direct impact on operational safety, which is why, in the event of fuel odors, signs of leaks, or after working on engine accessories, it is worth considering a replacement with a proven OEM component.

Condition, service application and installation

The offered line is a used part, which makes it a reasonable solution for repairs where maintaining original specifications while optimizing costs is important. For workshops specializing in BMW M and for informed users, this is a practical option for:

• fixing leaks in the fuel system,
• restoring factory line routing after modifications,
• servicing S55 engines after collisions or engine unit disassembly.

The installation of the line takes place in the factory location, using stock mounting points and connectors, which facilitates the mechanic's work and reduces vehicle downtime. Maintaining the original routing of the line also aids in subsequent diagnostics and service.

Why choose an original BMW fuel line

In high-power cars such as the BMW F80 M3 and F82 M4, the fuel system is crucial for reliability and consistent performance. Choosing an original fuel line:

• supports stable S55 engine operation across the full load range,
• reduces the risk of problems resulting from mismatched replacements,
• facilitates compliance with factory service documentation.

For users who are simultaneously upgrading other components, e.g., the exhaust system, additional technical materials may be helpful – more information can be found in the article on selecting used performance elements for the exhaust system, which covers components for BMW and other premium brands.

To better plan service work on your BMW and stay up to date with best practices for maintaining sports cars, it is also worth checking out our guide: practical tips on the operation and modernization of BMW cars, where we discuss, among other things, the importance of regular fuel system inspections.