Mercedes W205 M274 Petrol Fuel Rail Injection Injector A2740700995

Mercedes W205 M274 fuel rail with injectors is a component from the Other injection system parts group, designed for gasoline engines of this series. This solution allows for restoring proper fuel supply in M274 engines, ensuring stable operation and correct combustion parameters.

Specifications and technical data

• SKU: A2740700995
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2740700995
• Substitutable numbers: A2740700995, A 274 070 09 95
• Fuel type: Petrol
• Category: Additional Fuel Injection Parts

Purpose and Function in the Injection System

The fuel rail with injectors in Mercedes W205 models with M274 engines is responsible for the even distribution of fuel to individual cylinders. In a gasoline system, it plays a key role in maintaining proper pressure and precise fuel dosing, which translates to:

• stable engine operation across the entire RPM range,
• proper throttle response and engine smoothness,
• maintenance of factory emission parameters.

Thanks to the use of an original Mercedes solution, the rail maintains full compatibility with the factory fuel system architecture, without the need for installation modifications.

Technical Characteristics and Compatibility

The presented fuel rail belongs to the Other injection system parts category, meaning it works with other fuel supply system components in accordance with the manufacturer's specifications. The design is intended for gasoline fuel, which is important for both material resistance and flow characteristics.

The component has been designed specifically for M274 units used in the Mercedes W205, ensuring:

• appropriate mounting points to the cylinder head and engine accessories,
• correct positioning of fuel supply and return connectors,
• compatibility with the factory injector wiring harness.

This configuration facilitates installation and reduces the risk of leaks or assembly errors.

Component Condition and Benefits of Using a Used Part

The fuel rail with injectors comes from the secondary market, allowing for economical repair of the fuel supply system while maintaining original manufacturer specifications. For many users, this is a reasonable compromise between cost and quality, especially for advanced injection system components.

Choosing a used OEM component is particularly beneficial when you want to:

• maintain the factory engine performance characteristics,
• avoid problems with aftermarket part fitment,
• reduce service costs while maintaining a high level of reliability.

If you want to better understand the differences between original, aftermarket, and used parts and their cost-effectiveness, check out the article Original, aftermarket, and used parts – what is most cost-effective, where you'll find comparisons of costs and quality.

Why Choose an Original Mercedes Injection System

Using a fuel rail with injectors from a Mercedes helps maintain the consistency of the entire powertrain. The original fuel channel geometry and compatibility with the engine control unit promote the retention of factory injection maps and stable engine operation.

The main advantages of such a solution include:

• guaranteed fit for the specific engine without the need for modifications,
• maintenance of operating parameters as intended by the manufacturer,
• easier diagnostics in case of potential faults, due to compliance with service documentation.

If you are considering wider use of parts from the secondary market, the guide Used car parts – myths and facts may also be helpful, as it dispels common doubts regarding the durability and safety of such solutions.

Other Mercedes Injection System Parts

If you are also looking for other components from the Other injection system parts category dedicated to this brand, check out the Other Mercedes injection system parts available in our store to complete the entire set needed for fuel system service.