Mercedes W907 W910 Fuel Line Diesel Fuel Feed Return Pipe Hose A9074700102

Mercedes W907 W910 fuel return hose pipe Diesel is a fuel system component designed for Mercedes vans with a diesel engine. It is responsible for the safe return of fuel to the tank, supporting the stable operation of the injection system and proper diesel circulation.

Specifications and technical data

• SKU: A9074700102
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A9074700102
• Substitutable numbers: A9074700102, A 907 470 01 02
• Fuel type: Diesel
• Part type: Hose
• Category: Hoses, Lines & Pipes

Purpose and Function in the Fuel System

The Diesel fuel return pipe in Mercedes W907 and W910 models operates in close proximity to the injection system, draining excess fuel from the rail or injectors back to the tank. A correctly selected and sealed pipe:

• stabilizes fuel pressure in the common rail system,
• reduces the risk of air ingress and engine starting problems,
• ensures controlled diesel flow in the return circuit,
• supports uniform injector operation under varying engine loads.

In commercial vehicles like the Mercedes W907/W910, a functional return pipe directly impacts the engine's running smoothness and the vehicle's predictable behavior in daily fleet operations.

Construction and Performance Parameters

The fuel return hose pipe in this reference belongs to the category of "Pipes, Hoses, and Tubes", meaning it is specifically designed to work with Diesel fuel. The pipe's construction is adapted for:

• resistance to diesel fuel and typical fuel additives,
• handling operating pressure in the return circuit,
• operation in elevated engine bay temperatures,
• reducing vibrations and micro-cracks due to its flexible structure.

As a component of the diesel engine fuel system, the pipe is designed for long-term operation, maintaining proper sealing and resistance to temperature changes and typical thermal loads in vans.

Benefits of Using an Original Mercedes Pipe

Choosing a fuel return pipe dedicated to the Mercedes W907/W910 offers a range of practical advantages:

• Factory-fitted geometry – the correct length, diameter, and shape facilitate installation in original brackets and guides.
• Compatibility with Diesel fuel systems – the pipe is prepared to work with the operating parameters of the diesel engines used in these models.
• Reduced risk of leaks – appropriately selected connectors and connection diameters minimize the risk of fuel leaks.
• Stable engine operation – proper flow in the return circuit helps maintain uniform pressure in the fuel supply system.

For vehicles used in goods transport or service industries, maintaining a functional fuel system translates to fewer downtimes and more predictable operating costs.

Item Condition and Application in Service Practice

The offered pipe is part of the used Mercedes parts group, making it an attractive solution for economical repairs where a reasonable balance between cost and functionality is important. This type of component is particularly useful when:

• the original pipe has suffered mechanical damage (cracks, abrasion, broken spigot),
• fuel leaks are present around the injector rail or the return to the tank,
• a quick replacement is necessary in a workshop setting without waiting for long deliveries of new components.

In service practice, using an original, used fuel return pipe often allows for restoring the correct operation of the fuel supply system without needing to interfere with other components such as the pump or injectors.

Complementary Mercedes Pipes, Hoses, and Tubes

If you plan to replace multiple fuel or cooling system components during a single repair, it is worth considering selecting other Mercedes pipes, hoses, and tubes from the same product group. Consistent component selection simplifies servicing and improves operational predictability. View the full category offer using the link: Mercedes pipes, hoses, and tubes.

More on Using Used Parts in Tuning and Upgrades

For users interested not only in repairs but also in modifying a diesel-powered vehicle, a practical guide on how to safely enhance a car's performance using aftermarket components may be useful. We encourage you to read the material: How to Increase Engine Power with Used Parts – A Practical Tuning Guide, which helps to consciously plan upgrades while maintaining the safety and durability of the powertrain.