Mercedes W204 Petrol M274 Engine Fuel Line Pipe Hose A2740705200

Mercedes W204 Petrol M274 Engine Fuel Line Pipe Hose is an original fuel system component designed for M274 engine family units powered by petrol. The carefully engineered geometry of the pipe ensures stable fuel routing within the engine bay, which translates into predictable fuel system operation and safe vehicle performance.

Specifications and technical data

• SKU: A2740705200-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2740705200
• Substitutable numbers: A2740705200, A 274 070 52 00
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel system

The engine fuel line for the Mercedes W204 with the M274 unit is responsible for the controlled transport of fuel within the engine bay, between the fuel system components. A properly selected and installed pipe reduces pressure drops, minimizes the risk of leaks, and supports stable injector operation in the petrol engine.

Thanks to its precise fit for the specific M274 engine configuration, this component maintains the correct rigidity, bending radii, and mounting points, which facilitates installation and helps avoid material stress during engine operation.

Construction and fitment for Mercedes W204

The offered pipe belongs to the Lines, hoses, and pipes group, meaning it has been designed to operate in the high-temperature and vibration-prone environment of the engine bay. The pipe's construction is optimized for fuel flow, and the integrated connectors allow for a secure connection with other system components.

The component is designed for use with a petrol engine, which is significant both for the material's fuel resistance and for maintaining the appropriate flow parameters within the typical pressure ranges for M274 units.

Benefits of using an original Mercedes pipe

Using a fuel pipe dedicated to the Mercedes W204 with an M274 engine allows you to maintain the factory performance characteristics of the fuel system. Key advantages include:

• Compatibility with the petrol system – the pipe is adapted for use with petrol, taking its chemical properties into account.
• Stable fuel routing in the engine bay, which promotes smooth engine operation.
• Tailored geometry, facilitating installation at original mounting points without the need for modifications.
• Consistency with other fuel system components, which limits the risk of leaks at connections.

This solution is particularly beneficial for repairs where the goal is to maintain factory-like parameters without experimenting with universal replacements.

Characteristics of the used component

The offered fuel pipe is a used component, which in practice means it has been removed from a vehicle and verified for further serviceability. Such components are a popular choice for servicing older Mercedes W204 models, where a reasonable repair cost is important while maintaining the original system design.

When installing a used fuel pipe, standard service procedures are recommended: checking the seats, seals, and the correct routing of the pipe in the engine bay to ensure safe and leak-free operation of the petrol system.

Technical support and additional information

Before purchasing, it is worth comparing your M274 engine configuration with the offered component, paying attention to the pipe routing and the type of connectors used. If in doubt, referring to identification data such as manufacturer markings, OEM part numbers, or interchangeable numbers, which are presented in the technical specifications section, may be helpful.

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

For drivers interested in a broader perspective on selecting used powertrain components, including parts that work with the engine and drivetrain, the following guide may be helpful: Second-hand differential – what you need to know about used differentials, sensors, and drivetrain systems.