Mercedes W177 Fuel Feed Line Pipe Hose OM654 Diesel Engine A6540709101

Mercedes W177 Fuel Feed Line Pipe Hose OM654 Diesel Engine is an original fuel system component designed for OM654 diesel engines used in modern Mercedes compact class models. Thanks to its precise manufacturing and compliance with factory standards, it ensures stable power unit supply and safe operation of the entire fuel system. This solution is particularly attractive for users looking for a proven fuel line for professional repair or maintenance replacement.

Specifications and technical data

• SKU: A6540709101
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6540709101
• Substitutable numbers: A6540709101, A 654 070 91 01
• Fuel type: Diesel
• Part type: Line
• Category: Hoses, Lines & Pipes

Application in the OM654 Diesel engine

The fuel line dedicated to the OM654 unit running on Diesel fuel is responsible for transporting fuel at the appropriate pressure between fuel system components. In diesel engines, flow precision is crucial for engine smoothness, performance, and exhaust emissions, which is why using an original Mercedes line allows for maintaining engine operating parameters in accordance with the manufacturer's specifications. This item from the Lines, hoses, and pipes category is designed to work with high-pressure injection systems, maintaining proper tightness, vibration resistance, and dimensional stability across a wide range of operating temperatures typical for diesel engines.

Construction and technical characteristics

The original Mercedes fuel line for the W177 is made of materials selected for their resistance to diesel fuel, operating pressure, and long-term thermal loads. The design of the line includes:

• precisely shaped geometry adapted to the OM654 engine bay,
• connectors prepared for compatibility with factory fittings and injection system components,
• appropriate rigidity and flexibility, reducing the transmission of vibrations to other components. Such a configuration promotes stable fuel system operation, minimizes the risk of leaks, and facilitates installation at original mounting points without the need for modifications.

Condition of the item and benefits of choosing an original

The offered fuel line is a used part, which allows for economical repair while maintaining the advantages of an original Mercedes component. In practice, this means:

• factory fitment for the fuel system in the W177 body with an OM654 engine,
• preservation of the original routing geometry in the engine bay,
• possibility of installation in place of a worn or damaged element without interfering with the vehicle's structure. Choosing an original line from the Lines, hoses, and pipes group reduces the risk of compatibility issues that may occur when using aftermarket parts with uncertain parameters.

Why choose the Mercedes W177 OM654 Diesel fuel line

By using a dedicated fuel line for the OM654 diesel engine, the user gains a component designed for a specific power unit and its pressure requirements. This is particularly important in modern injection systems, where even minor deviations in flow or tightness can affect injector operation, fuel consumption, and vehicle dynamics. An original Mercedes component supports the maintenance of stable engine operating parameters, which translates into predictable vehicle behavior in daily use. 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 supply lines, rigid fuel pipes, or return sections, check out the available parts in the Mercedes lines, hoses, and pipes category.

Support for repairs using original used parts

When selecting a used fuel line for a modern diesel engine, it is worth paying attention to compatibility with the power unit, fuel type, and injection system design. A properly selected element allows for reducing service costs while maintaining parameters close to factory specifications. If you want to better plan your repair and learn about the advantages of using original second-hand components, see practical tips in the article Repairing a car after a collision: how to restore full efficiency using original used parts without overpaying?.