Mercedes Sprinter W907 Diesel Return Fuel Tank Line Hose Pipe A9074761300

Mercedes Sprinter W907 Diesel Return Fuel Tank Line Hose Pipe is a specialized fuel system component designed for diesel engines. It ensures the controlled return of excess diesel fuel to the tank, which supports stable operation of the injection system and proper fuel circulation. Thanks to its design tailored to the Sprinter W907 platform, the installation of the hose is precise and consistent with the factory geometry of the system, with no modifications required.

Specifications and technical data

• SKU: A9074761300
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A9074761300
• Substitutable numbers: A9074761300, A 907 476 13 00
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel system

The described hose belongs to the Lines, hoses, and pipes category and is dedicated to the diesel fuel system in the Mercedes Sprinter W907. It is responsible for the safe discharge of unused fuel from the rail or supply pump back to the tank, which limits fuel overheating, stabilizes system pressure, and supports uniform injector operation.

A properly selected return hose minimizes the risk of leaks, pressure drops, and starting problems, especially under heavy load or continuous operation of the commercial vehicle. Dedicated fitment for the specific Sprinter generation facilitates maintenance and allows for the preservation of the factory fuel system routing.

Construction, fitment, and installation

The hose has been designed as a component of the diesel engine fuel system, with a carefully selected inner diameter and wall flexibility to ensure proper flow of the return fuel stream. The used end fittings and the shape of the hose are adapted to the original connectors in the Sprinter W907, which facilitates installation and reduces vehicle downtime.

In service practice, the return hose is most often replaced in the event of:

• detecting leaks or abrasions on flexible sections,
• damage to connections during other service work,
• problems with air entering the fuel system.

By maintaining the original geometry, the Mercedes Sprinter W907 Diesel Return Fuel Tank Line Hose Pipe allows for the restoration of the factory fuel line routing, which is important for both safety and subsequent service maintenance.

Performance characteristics and application benefits

The element is designed for operation in diesel-powered systems, taking into account the typical operating temperatures and pressures for diesel engines. Adequate material resistance to fuel and its additives limits the risk of cracks, swelling, or hardening of the hose during operation.

Using the correct return hose in the Sprinter W907 brings measurable benefits:

• stable injection system operation due to proper discharge of excess fuel,
• reduced risk of leaks in the engine compartment and the tank area,
• maintenance of factory hose routing, which facilitates diagnostics and subsequent repairs,
• better fuel temperature control in the return circuit.

In commercial vehicles such as the Sprinter W907, a properly functioning fuel return system has a direct impact on reliability in daily fleet and transport operations.

Component condition and service aspects

The hose belongs to the group of used parts, which allows for economical repair of the fuel system while maintaining the original installation specification. In workshop practice, such a solution is often chosen for ad-hoc repairs when it is crucial to quickly restore vehicle efficiency at controlled costs.

Before installation, a standard service procedure is recommended: checking the tightness of connections after installation, bleeding the fuel system, and verifying the correct routing of the hose relative to body and chassis components. Correct installation of the fuel return hose reduces the risk of abrasion and mechanical damage during further operation.

Related components and additional information

If you are planning a comprehensive repair or upgrade of the fuel system area in your Mercedes and need other elements from the same group, such as flexible fuel line sections, rigid guide pipes, or vent hoses, check the available parts in the Mercedes lines, hoses, and pipes category.

When selecting fuel system components, it is worth considering the differences between original parts, replacements, and aftermarket components. If you want to better evaluate the cost-effectiveness of individual solutions in terms of price, quality, and fitment based on catalog numbers, the following article will be helpful: Original, replacement, or used – which car parts are the most cost-effective?