Injection Pipe Mercedes W177 Petrol M282 Fuel Rail High Pressure A2820704100

The Mercedes W177 Benz M282 High-Pressure Fuel Rail Hose is a precise component of the fuel supply system in gasoline engines, specifically designed for the M282 unit. It is responsible for the safe and stable delivery of high-pressure fuel to the fuel rail, which is crucial for the proper functioning of the engine and the quality of the combustion process. A used OEM component allows for a technically correct repair without altering the factory construction.

Specifications and technical data

• SKU: A2820704100
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2820704100
• Substitutable numbers: A2820704100, A 282 070 41 00
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Purpose and Function in the Fuel System

The high-pressure fuel rail hose in the M282 gasoline engine is responsible for transporting fuel from the high-pressure pump to the fuel rail. This section of the fuel system experiences particularly high pressure values, therefore the hose's design must ensure:

• adequate resistance to pulsating loads in the gasoline system,
• stable maintenance of sealing under varying engine operating conditions,
• precise fit to the ports in the pump and fuel rail,
• geometric compatibility with the auxiliary equipment in the engine bay.

By maintaining factory geometry and flow characteristics, the hose supports correct fuel dosing by the injectors, which translates to the smoothness of the powertrain's operation and the stability of emission parameters.

Application in the M282 Gasoline Engine

The M282 engine is a modern gasoline unit where the direct injection system operates under significant pressure. In this setup, the high-pressure fuel rail hose is a critical component for:

• maintaining adequate fuel pressure in the rail,
• preventing pressure drops during sudden load changes,
• reducing the risk of leaks in the high-pressure zone,
• preserving the factory operating characteristics of the gasoline supply system.

Choosing a hose dedicated to the M282 avoids problems with mismatched shape, diameter, or connection types, which is particularly important in a tightly packed engine bay.

Construction and Role in the "Hoses, Tubes, and Pipes" Group

This component belongs to the Hoses, Tubes, and Pipes group, which comprises components responsible for transporting working fluids in a vehicle. In the case of this hose, it operates under high fuel pressure conditions, so its construction is optimized for:

• resistance to gasoline and the temperature in the engine bay,
• the rigidity necessary to maintain shape under engine vibrations,
• precise routing between the pump and the fuel rail,
• safe installation without stressing the connections.

A used OEM part with preserved mounting geometry allows for efficient replacement of a damaged hose without the need to modify other fuel system components.

Benefits of Using an Original High-Pressure Hose

Using a high-pressure fuel rail hose dedicated to the M282 gasoline engine offers a range of practical service and operational benefits:

• preservation of factory injection system operating parameters,
• reduction of the risk of fuel leaks in the high-pressure zone,
• secure fit to existing engine mounts and auxiliary equipment,
• possibility of performing repairs according to the vehicle manufacturer's specifications.

For workshops and users, this means a more predictable repair outcome and easier diagnosis of potential future faults, as the system remains compliant with the manufacturer's technical documentation.

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 fuel lines, vacuum hoses, or pipes for supplying working fluids, check the available parts in the Mercedes Hoses, Tubes, and Pipes category.

Additional Technical Support

When working with the fuel supply system and engine auxiliaries, it is also worth paying attention to the condition of the cooling system, which directly impacts the durability of the powertrain and the components operating in its vicinity. More practical information on the effect of engine operating temperature on its lifespan can be found in the article Engine Cooling System – Overheating, Repair, and Used Radiators, which discusses common problems and good service practices.