Range Rover Sport L494 Defender L663 Fuel Pipe Line 3.0 Diesel K6D3-9T518-AC

Range Rover Sport L494 Defender L663 Fuel Pipe Line 3.0 Diesel is an original component from the Lines, hoses and pipes group, designed for the diesel engine fuel supply system. It ensures stable fuel delivery in the 3.0 Diesel power unit, which translates into the correct operation of the injection system and safe vehicle operation.

Specifications and technical data

• SKU: LR125290
• Mark: Range Rover
• Condition: Used
• OEM Part Number: LR125290
• Substitutable numbers: K6D3-9T518-AC, K6D39T518AC, LR125290
• Fuel type: Diesel
• Part type: Pipe
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel system

The described fuel pipe is a component of the diesel engine fuel supply system, responsible for precisely delivering fuel at the appropriate pressure to subsequent components. The proper geometry and internal diameter of the pipe limit pressure drops and the risk of cavitation, which is important for the stable operation of the injectors and uniform combustion of the mixture.

Being dedicated to the 3.0 Diesel unit in the Range Rover Sport L494 model means it matches the factory routing of pipes, brackets, and mounts in the engine bay. Thanks to this, installation is orderly, and the pipe is not exposed to excessive vibrations, chafing, or contact with high-temperature components.

Construction and performance parameters

The pipe belongs to the group of rigid or semi-rigid elements used in modern diesel fuel systems, where resistance to high operating pressures and variable thermal conditions is required. The design is engineered to:

• maintain the tightness of the fuel system under typical operating loads,
• minimize the risk of micro-leaks and air entering the system,
• ensure stable fuel delivery across the entire engine RPM range.

The appropriate shaping of the pipe facilitates its correct positioning relative to other components in the engine bay, which is important for both safety and subsequent maintenance.

Benefits of using an original fuel pipe

Using an original fuel pipe in a diesel engine allows for maintaining the factory parameters of the fuel supply system. In practice, this means:

• reducing the risk of fuel leaks and associated failures,
• stable system pressure, promoting uniform injector operation,
• proper fitment to factory mounts and brackets in the Range Rover Sport L494.

For the user, this translates into more predictable vehicle behavior, easier diagnostics of potential fuel supply issues, and the ability to keep the fuel system in a state close to the factory configuration. For diesel units, where the quality of fuel supply has a direct impact on engine refinement and durability, this is particularly important.

Condition, installation, and part selection

The item is sourced from disassembly and is intended for reinstallation in a vehicle with a diesel engine, following standard service procedures. Before installation, it is recommended to verify the system for cleanliness and check other supply components, such as the fuel filter or flexible hoses, to avoid secondary contamination and uneven system operation.

When selecting a fuel pipe for the Range Rover Sport L494, it is worth paying attention to compatibility with the power unit and the fuel system configuration. Proper selection of the component reduces the need for modifications, ensures correct fitment, and facilitates subsequent service activities related to diagnostics or the replacement of other components.

System expansion and related parts

If you are planning a comprehensive repair or upgrade of the fuel system area in your Range Rover and need other elements from the same group, such as additional supply, return, or connecting lines, check the available parts in the Range Rover Lines, hoses and pipes category.

For users interested in a broader perspective on the operation of drivetrain components and the selection of used parts, a guide describing practical aspects of assessing the condition of parts and avoiding common purchase mistakes may be useful – you can find it in the article Second-hand differential – what you need to know about used differentials, sensors, and drivetrain systems.