Mercedes W166 Fuel Distributor Rail Right O/S A2760781345

Mercedes W166 Right Fuel Rail A2760781345 is an original fuel supply system component designed for the right side of the engine in Mercedes W166 vehicles. This product, from the injector nozzles category, ensures stable injector supply and proper engine operation under demanding conditions.

Specifications and technical data

• SKU: A2760781345
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2760781345
• Substitutable numbers: A2760781345, A 276 078 13 45
• Location on the vehicle: Right
• Category: Fuel Injectors

Purpose and Function of the Fuel Rail

The right-side fuel rail is responsible for evenly distributing fuel to individual injectors, maintaining the correct operating pressure throughout the circuit. In Mercedes W166 vehicles, it is a key element of the precise injection system, influencing engine smoothness, dynamics, and fuel consumption.

Thanks to its proper geometry and compatibility with the specific engine configuration, the right fuel rail works with the control electronics, enabling stable operation across the full load range – from low RPMs to intense acceleration.

Construction and Compatibility with Mercedes W166

The offered fuel rail has been specifically designed for the W166 platform, which translates to:

• factory fit for the right side of the engine – compatibility with original mounting points and wiring harnesses,
• integration with the injector nozzle system – ensuring the correct positioning of injectors relative to the combustion chamber,
• stable fuel pressure maintenance – limiting pressure fluctuations under varying engine loads.

This design allows for installation in place of the original component without modifications, which is crucial for both the reliability and safety of the fuel system.

Benefits of Using an Original Fuel Rail

Using a fuel rail dedicated to the Mercedes W166 offers a range of practical service and operational benefits:

• maintaining factory parameters – proper fuel metering and predictable engine behavior,
• reducing the risk of leaks – correct fit with injectors and fuel lines,
• stable injector system operation – reduced risk of power loss, jerking, or starting problems,
• easier diagnostics – compliance with factory service procedures and technical documentation.

This solution is particularly recommended for professional fuel system repairs where parameter consistency and adherence to manufacturer specifications are paramount.

Application in the Injector Nozzle System

As a component of the injector nozzles category, the right fuel rail works directly with the fuel injectors, forming a complete supply path. The proper condition of the fuel rail significantly impacts:

• fuel atomization precision – maintaining correct pressure at the injector inlets,
• uniform operation of all cylinders – eliminating dosage differences between individual sections,
• reducing load on the high-pressure pump – stabilizing pressure throughout the system.

When upgrading or repairing the injection system in a Mercedes W166, selecting the correct right-side fuel rail is crucial for achieving the desired service outcomes.

Product Condition and Service Application

The offered Mercedes W166 Right Fuel Rail A2760781345 is a used part, allowing for an economical restoration of the injection system's functionality while maintaining the original manufacturer's specifications. This is a particularly attractive solution for intensive use vehicles where a favorable cost-to-functionality ratio is important.

The component is suitable for both professional workshops specializing in the Mercedes brand and independent service centers that prioritize compliance with original design solutions.

More About Injector Nozzles and Diagnostics

When working on the fuel rail, it is advisable to pay attention to the condition of the injectors themselves and the entire fuel supply system. Symptoms such as uneven engine operation, smoke, or power loss may indicate fuel injection problems. If you want to better understand typical symptoms and verification methods, check out the article Diesel Injector Faults – How to Recognize Them and What Their Neglect Entails, which discusses the symptoms, consequences, and basics of diagnosing injection systems.

If you are looking for other components from the injector nozzles category for this brand's vehicles, check out the Mercedes injector nozzles available in our store to select components that meet your fuel system requirements.