Fuel Injection Rail Mercedes W213 OM654 High Pressure Fuel Rail A6540700095

The Mercedes W213 OM654 fuel rail is a component of the diesel engine fuel system, designed for diesel units in W213 generation E-Class models. It is responsible for the stable distribution of fuel to the injector nozzles, which is crucial for the operating characteristics, performance, and economy of the OM654 engine.

Specifications and technical data

• SKU: A6540700095
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6540700095
• Substitutable numbers: A6540700095, A 654 070 00 95, KZ
• Fuel type: Diesel
• Category: Fuel Injectors

Purpose and Role in the Injection System

In a diesel engine, the fuel rail serves as a common fuel manifold that ensures uniform supply to all injector nozzles. The OM654 unit utilizes a modern high-pressure system, where the stability of fuel pressure in the rail directly impacts:

• precise fuel metering across the entire engine load range,
• efficient cold starts and consistent idle operation,
• reduced smoke and exhaust emissions during acceleration,
• maintenance of optimal combustion with low fuel consumption.

Therefore, a correctly selected fuel rail for the Mercedes W213 with an OM654 engine is key to preserving the original performance parameters of the powertrain.

Compatibility and Fitment for Mercedes W213 OM654

The offered fuel rail for the OM654 diesel engine has been designed for use in the Mercedes E-Class W213. Its construction is based on OEM solutions, which translates to:

• precise fitment with the engine cylinder head and accessories,
• correct positioning of the supply ports for the injector nozzles,
• compatibility with the original fuel system of the diesel engine.

Prior to installation, standard verification of compatibility based on the OEM number and engine configuration is recommended to ensure full compatibility with the specific W213 version.

Technical Characteristics for Diesel Engines

The fuel rail operates under demanding conditions typical for diesel injection systems, where very high fuel pressures are present. For this reason, the component's design is focused on:

• resistance to material fatigue during prolonged operation under load,
• stable maintenance of fuel pressure across the entire RPM range,
• sealing of connections with injector nozzles and high-pressure lines.

The proper condition of the fuel rail directly affects the operation of the injector nozzles. Therefore, in cases of symptoms such as uneven engine operation, power loss, or increased fuel consumption, its diagnostics should be considered along with other system components.

Component Condition and Installation Recommendations

The offered Mercedes W213 OM654 fuel rail is from the aftermarket. Prior to installation, it is recommended to:

• visually inspect the working surfaces and connection ports,
• check the system for leaks after installation in the vehicle,
• install at a specialized service center that handles diesel injection systems.

A correctly installed fuel rail, working in conjunction with functional injector nozzles, helps maintain stable operating parameters of the OM654 engine and reduces the risk of costly future failures.

Technical Support and Additional Materials

If you want to better understand how fuel system problems manifest in a diesel engine, the following article will be helpful: Diesel Injector Faults – How to Recognize Them and What Neglecting Them Entails. You will find practical tips on diagnosing injector nozzles and related components, such as the fuel rail.

When selecting fuel system components, it is advisable to use the OEM number and vehicle data. The detailed process is described in the guide: How to Select the Correct Automotive Part by VIN and OEM Number, which facilitates compatibility verification before purchase.

If you are looking for other Mercedes injector nozzles for your car, check out our dedicated category: Mercedes Injector Nozzles. This will allow you to easily compare available injection system components for various models of this brand.