Mercedes W205 X253 Diesel M626 OM651 Fuel Feed Hose Line A2054760026

Mercedes W205 X253 Diesel M626 OM651 Fuel Feed Hose Line is an original fuel system component designed for diesel engines, engineered for precise fuel delivery. Thanks to its factory-spec geometry and perfect fit for the specific engine configuration, it ensures stable operation of the injection system and reduces the risk of leaks. This is particularly important for modern diesel units, where fuel flow accuracy directly impacts engine refinement and performance.

Specifications and technical data

• SKU: A2054760026
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2054760026
• Substitutable numbers: A2054760026, A 205 476 00 26
• Fuel type: Diesel
• Category: Other Air & Fuel Delivery

Purpose and role in the fuel system

The fuel lines in Mercedes W205 and X253 diesel models are responsible for transporting fuel at the required pressure between fuel system components. In diesel engines, it is crucial to maintain tightness and resistance to pressure pulsations generated by the pump and injectors. Properly selected lines minimize pressure drops, support even fuel dosing, and help maintain stable combustion parameters.

Benefits of using original fuel lines

Using fuel lines dedicated to a specific Mercedes diesel engine configuration translates into a number of practical operational benefits:

• preservation of the factory routing, which reduces the risk of chafing and vibration,
• compatibility with original connectors and injection system components,
• stable fuel system operating conditions under varying engine loads,
• reduced risk of fuel leaks and pressure drops in the system.

For modern diesel units, properly selected fuel lines are a key element affecting the durability of injectors, the high-pressure pump, and the overall reliability of the powertrain.

Technical characteristics and installation

Fuel lines designed for Mercedes W205 and X253 diesel engines are engineered to withstand high pressure and the elevated temperatures of the engine bay. The appropriate rigidity and flexibility of the lines allow for the compensation of engine vibrations without placing excessive stress on the connectors. Thanks to the factory fit for the specific system, installation is orderly, maintaining original mounting points and routing.

When replacing fuel lines in a diesel engine, it is recommended to maintain high cleanliness around the connectors and inspect other fuel system components. Correct installation reduces the risk of air entering the system and allows for the quick restoration of full engine efficiency.

Application in Mercedes diesel vehicles

These fuel lines are intended for Mercedes W205 and X253 class vehicles equipped with diesel engines, where the fuel system requires precisely matched components. In these types of diesel units, even minor leaks or deformations of the lines can lead to starting problems, power loss, or rough idling. Using an original component allows you to maintain the parameters specified by the manufacturer and facilitates the diagnosis of potential future faults.

Component condition and part selection

The product is sourced from dismantling and is intended for users looking for proven, used fuel system components for a Mercedes diesel. Choosing this solution is often economically advantageous while maintaining compliance with the vehicle's factory specifications. Before installation, it is recommended to verify compatibility with the specific engine version and body configuration to ensure proper line routing and fitment to the existing installation.

If you are planning a comprehensive repair or upgrade of the fuel system area in your Mercedes and need other parts from the same group, such as additional lines, connectors, or mounting elements, check the available parts in the Other Mercedes category.

To compare the characteristics of diesel units with powerful gasoline engines and to better understand the differences in powertrain and accessory design, it is worth reading the blog article Audi RS vs other models – what is hidden under the hood and chassis?, which shows how the selection of appropriate components affects the performance and durability of the entire drivetrain.