Mercedes W163 W203 W210 OM612 Diesel Fuel Rail Line Pipe A6120700095

The Mercedes W163 W203 W210 OM612 fuel rail is a precise component of the diesel engine's fuel supply system, designed for installation in popular Mercedes models with the OM612 engine. It is responsible for stable fuel supply to the injectors, which translates into smooth engine operation, proper running culture, and predictable response to load.

Specifications and technical data

• SKU: A6120700095
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6120700095
• Substitutable numbers: A6120700095, A 612 070 00 95, A6120700295, A 612 070 02 95
• Location on the vehicle: Front
• Fuel type: Diesel
• Category: Fuel Injectors

Purpose and Role in the Injection System

The fuel rail for Mercedes with OM612 engine operates within a common rail system, distributing fuel to individual injectors. Its task is to maintain appropriate supply parameters across the entire load range, which is crucial for:

• Stable diesel engine operation at low and high RPMs,
• Correct fuel metering by the injectors,
• Maintaining proper engine running culture under typical driving conditions.

The component is designed for installation in the front part of the engine bay, within the diesel fuel supply system, working directly with injectors and high-pressure components.

Compatibility with Mercedes Models

This fuel rail has been designed for use in Mercedes W163, W203, and W210 class vehicles equipped with the OM612 diesel engine. This makes it the right choice for:

• Repairing the injection system after a failure or leak,
• Restoring the factory configuration of the diesel engine's fuel supply system,
• Preventive maintenance for vehicles operated in demanding conditions.

Selecting the component based on the OEM part number and interchangeable numbers allows for precise matching to the specific engine version and vehicle year, minimizing the risk of installation issues.

Category, Construction, and Operating Parameters

The product belongs to the Injector Nozzles category, but in practice, it is a key component of the fuel supply line, working directly with the injectors. The fuel rail's construction is adapted for operation with diesel fuel, under typical common rail system pressure conditions, ensuring:

• Appropriate system rigidity and sealing under varying loads,
• Uniform fuel distribution to all cylinders,
• Stable operating conditions for the injectors across the entire working temperature range.

Its location in the front of the vehicle facilitates service access and inspection of the injection system's condition during maintenance.

Condition, Service Application, and Part Selection

The offered fuel rail is a used part, making it an attractive option for economical repair of the fuel supply system in older Mercedes models. It is particularly suitable in situations where:

• A quick replacement of a damaged component is necessary without investing in a complete new system,
• Restoring proper diesel engine operation while maintaining reasonable costs is a priority,
• The vehicle is used intensively and requires efficient but budget-friendly servicing.

Before installation, standard inspection of the injection system and computer diagnostics are recommended to confirm that the fuel rail or cooperating components are the source of the problem.

Technical Support and Additional Materials

When working with a common rail system, it is beneficial to know the typical symptoms of fuel supply component wear. Detailed information on the symptoms and consequences of faulty injector operation can be found in the article: Diesel Injector Failures – How to Recognize Them and What Neglecting Them Entails. This is a practical addition to your knowledge when diagnosing diesel engine problems.

If you are looking for other parts in the injector nozzles category dedicated to this brand, check out the Mercedes injector nozzles available in our store to select a complete solution for your fuel supply system.