Fuel Hose BMW F10 F12 Petrol N63 High Pressure Fuel Line Injection Hose 7557326

Fuel Hose BMW F10 F12 Petrol N63 High Pressure Fuel Line Injection Hose is an original fuel system component designed for N63 petrol engines in BMW F-series models. This specialized line, belonging to the Lines, Hoses and Pipes category, is responsible for safely delivering high-pressure fuel to the fuel rail, which is crucial for the stable operation of the engine. Using this OEM component allows you to maintain the factory performance parameters of the fuel system while ensuring a favorable cost-to-quality ratio.

Specifications and technical data

• SKU: 7557326
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7557326
• Substitutable numbers: 7557326, 13537557326
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel system

The Fuel Hose BMW F10 F12 Petrol N63 High Pressure Fuel Line Injection Hose operates in the demanding environment of a direct-injection petrol engine. Its task is to transport fuel under high pressure from the pump to the fuel rail, while maintaining proper sealing and resistance to thermal and mechanical stress.

In the N63 engine, stable fuel pressure is essential for:

• precise fuel dosing by the injectors,
• maintaining proper engine performance and smoothness,
• reducing power loss and hesitation during acceleration,
• ensuring compliance with factory engine control unit maps.

Construction and fitment for BMW F10 / F12

The component has been designed as part of the fuel supply system for petrol units on the BMW F platform, taking into account the geometry of the engine bay and the layout of the accessories. As a result, the line:

• features factory mounting points, which facilitates correct routing in the engine bay,
• is matched to the fuel rail and high-pressure pump used in the N63 engine,
• is made of materials adapted for operation with high-pressure petrol.

The original BMW origin helps maintain compatibility with factory equipment and minimizes the risk of installation issues.

Benefits of using an original fuel line

Using a high-pressure fuel rail line dedicated to the N63 engine helps reduce common fuel system problems in petrol units:

• reduced risk of leaks at connections,
• stable fuel pressure across the entire load range,
• better repeatability of engine performance compared to aftermarket replacements of uncertain origin.

For users who expect predictable engine behavior, using an original line from the Lines, Hoses and Pipes group is a technically sound solution.

Component condition and installation aspects

The offered line is a used component, which in practice means the possibility of an economical repair of the fuel system while retaining an OEM part. Before installation, standard visual inspection and checking of seats and connectors for any signs of operational wear are recommended.

During installation, it is worth paying attention to:

• correct positioning of the line in the engine bay,
• using the appropriate tightening torques for connections,
• checking for leaks after the first engine start.

Technical support and additional materials

If you are planning a comprehensive repair or upgrade of the fuel supply area in your BMW and need other components from the same group, such as flexible hose sections, rigid supply pipes, or fuel system connectors, check the available parts in the BMW Lines, Hoses and Pipes category.

For users interested in a broader look at servicing key vehicle systems, the suspension guide may be helpful – more information can be found in the article Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers, which facilitates the planning of service work on premium class cars.