Fuel Injection Line Mercedes W204 W212 OM651 Pressure Pipe Rail A6510700581

Mercedes W204 OM651 Diesel Fuel Line A6510700581 is an original part from the Hoses, Pipes, and Tubes group, designed for the fuel system of the OM651 diesel engine. The carefully designed geometry of the line ensures stable fuel delivery and proper cooperation with the engine's accessories. This is a practical solution for users who want to maintain the factory characteristics of the fuel system in their Mercedes.

Specifications and technical data

• SKU: A6510700581-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510700581
• Substitutable numbers: A6510700581, A 651 070 05 81
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and Function in the Fuel System

The fuel line is dedicated to Diesel engines of the OM651 family used in Mercedes W204 models. It is responsible for precise fuel delivery within the fuel system, maintaining appropriate flow parameters and sealing. The line's construction is adapted to the pressure loads typical for modern diesel engines, contributing to the stable operation of the entire system.

Construction and Fit for Mercedes W204 OM651

The part has been specifically designed for the engine bay architecture of the Mercedes W204 with the OM651 unit, ensuring correct routing and mounting points. The appropriate shaping and working diameter of the line support proper fuel circulation, minimizing the risk of incorrect positioning or stress during operation.

As part of the Hoses, Pipes, and Tubes group, the fuel line works with other fuel system components, such as the pump, rail, and injectors, creating a cohesive, factory-standard system. Using an original solution maintains compliance with service documentation and facilitates future diagnostics.

Performance Characteristics and Benefits of Use

Choosing an original fuel line for the OM651 engine helps reduce the risk of leaks, pressure drops, or starting problems that can occur with parts of uncertain origin. Maintaining proper fuel flow directly impacts the engine's smoothness, fuel consumption, and the correct operation of the injection system.

• Factory fit for the Mercedes W204 fuel system with OM651 engine.
• Adapted to the operating parameters of a diesel engine.
• Compatibility with other components from the Hoses, Pipes, and Tubes group.
• Supports stable operation of the injection and fuel supply system.

The product is offered as a used original part, allowing for economical repair while maintaining compliance with factory solutions.

Condition, Installation, and Service Application

The fuel line is available in used condition, making it an attractive option for operational repairs or restoring fuel system functionality after a failure. The part is intended for installation in place of the original line, maintaining the original mounting points and routing within the engine bay.

Due to the importance of the fuel system for vehicle safety and reliability, installation by a person experienced in working with Mercedes diesel engines is recommended, along with the use of appropriate bleeding and leak testing procedures after installation.

System Expansion – Other Mercedes Hoses, Pipes, and Tubes

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

For users interested in a broader context of selecting used OEM parts in modern turbocharged engines, an article comparing turbochargers in Mini sports engines might be helpful – you can find it here: Go-Kart Feeling XXL: Used N18 Turbocharger vs. B48 – What to Choose for a Mini Cooper S?.