The Mercedes W204 W212 Diesel OM651 Injector Fuel Injector is an original injector nozzle designed for OM651 diesel engines, used in popular Mercedes C-Class W204 and E-Class W212 models. This component ensures precise diesel fuel metering, which translates to stable engine operation and proper engine running characteristics.
Specifications and technical data
- SKU: A6510702887
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A6510702887
- Substitutable numbers: A6510702887, A 651 070 28 87
- Fuel type: Diesel
- Category: Fuel Injectors
Technical Characteristics of the Injector
The presented fuel injector belongs to the category of injector nozzles and is structurally adapted for the Diesel fuel system in the OM651 engine. It is responsible for accurate fuel atomization in the combustion chamber, which is crucial for efficient mixture combustion, reduced smoke, and maintaining correct engine operating parameters.
The injector has been designed by the manufacturer to maintain proper common rail pressure, stable valve opening and closing, and repeatable fuel delivery across the full load range. This allows the OM651 engine to maintain smooth idling, adequate acceleration dynamics, and predictable fuel consumption.
Application in the OM651 Diesel Engine
The injector is designed for Diesel engines where precise fuel dose control is essential. In the OM651 engine, a properly functioning injector nozzle contributes to:
- maintaining stable injection system pressure under various engine load conditions,
- reducing vibrations and uneven running at low RPMs,
- decreasing exhaust emissions through proper fuel-air mixture formation,
- efficient engine starting both when cold and after warming up.
By maintaining its original design parameters, the injector works seamlessly with the original engine control unit, sensors, and other common rail system components, facilitating diagnostics and subsequent operation.
Benefits of Using an Original Injector Nozzle
Choosing an original injector nozzle for the Mercedes W204 / W212 ensures the integrity of the entire fuel system. The key benefits include:
- factory fit for the OM651 engine – no need for installation modifications or mechanical adaptations,
- proper compatibility with the vehicle's electronics – the engine control unit utilizes the manufacturer's specified injection characteristics,
- stable engine operating parameters – uniform fuel delivery reduces the risk of knocking combustion and excessive piston load,
- easier service diagnostics – mechanics can use factory test procedures and reference values.
A fuel injection system configured in this way promotes the maintenance of adequate power, flexibility, and engine smoothness, which is particularly important for the daily operation of Mercedes C-Class and E-Class vehicles.
Component Condition and Installation Aspects
The offered injector is a used part, providing a cost-effective solution for users seeking original components at a reasonable price. Such parts are often chosen for fuel system repairs when maintaining the original design specifications while optimizing service costs is a priority.
Before installation, it is recommended to perform standard service procedures, such as checking the cylinder head seats, verifying the fuel line seals, and assessing operating parameters on a diagnostic bench. A correctly installed injector nozzle allows for the restoration of proper fuel system operation without the need to interfere with other engine components.
Diagnostics and Prevention of the Fuel System
For diesel engines, early detection of injector wear symptoms, such as uneven running, power loss, or increased smoke, is crucial. To better understand these symptoms and the potential consequences of neglect, it is advisable to read the article: Diesel Injector Failures – How to Recognize Them and What Their Neglect Entails. This knowledge facilitates the decision to replace a single injector nozzle or a complete set.
Other Mercedes Injector Nozzles
If you are also looking for other Mercedes injector nozzles for different engine versions or models of this brand, check out our dedicated category: Mercedes Injector Nozzles. This will allow you to easily compare available solutions and select the appropriate part for your specific vehicle.
