Mercedes W907 AdBlue Injector Additive Nozzle OM654 Diesel A0004905300

Mercedes W907 AdBlue Injector Additive Nozzle OM654 Diesel is a specialized fuel system component designed for Mercedes diesel engines with the OM654 unit. This used AdBlue injector supports precise dosing of the urea solution into the exhaust system, which helps maintain stable engine operating parameters and reduce exhaust emissions. It is a solution for users looking for a proven component at a reasonable price, while maintaining functionality consistent with factory specifications.

Specifications and technical data

• SKU: A0004905300-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0004905300
• Substitutable numbers: A0004905300, A 000 490 53 00, A9075012100, A 907 501 21 00
• Fuel type: Diesel
• Category: Additional Fuel Injection Parts

Purpose and function in the injection system

The presented AdBlue injector operates in the diesel engine fuel system, where stable dosing of the nitrogen oxide reducing agent is crucial. This component works with the electronic engine control unit, responsible for delivering the correct amount of solution into the exhaust stream. As a result, the exhaust gas cleaning system can maintain parameters in accordance with the manufacturer's specifications, and the OM654 unit retains its operating characteristics.

In modern Mercedes diesels, a properly functioning AdBlue injector influences:

• stability of the NOx emission reduction system,
• reduction of the risk of the engine entering limp mode,
• maintenance of compliance with exhaust emission standards.

Compatibility with Mercedes W907 and the OM654 unit

The injector has been designed to work with the Mercedes W907 platform equipped with the OM654 diesel engine. This means it is matched in terms of construction, hydraulics, and electrical systems to the vehicle's factory injection system. Using a component from the same design group allows for maintaining the original characteristics of the exhaust cleaning system without the need for system modifications.

For the user, this means:

• maintaining factory mounting geometry within the exhaust system,
• proper cooperation with the existing electrical installation and engine controller,
• reduction of time required for diagnostics and adaptation after replacement.

Technical and operational characteristics

As an element from the Other injection system parts group, this AdBlue injector operates in demanding temperature and chemical conditions. The construction is adapted for contact with the urea solution and for operation in the exhaust system zone, where resistance to temperature changes and vibrations is essential. Using a dedicated component for the diesel engine minimizes the risk of leaks and problems with medium atomization.

The used component allows for economical system repair while maintaining the original manufacturer's specification. This solution is particularly beneficial for fleets and intensively used vehicles, where both service costs and maintaining repeatable injection system performance are important.

Benefits of using an original AdBlue injector

Using a component sourced from a Mercedes system ensures consistency with the vehicle's factory architecture. In practice, this translates into:

• better compatibility with engine control software compared to random replacements,
• maintaining the AdBlue dosing characteristics intended by the manufacturer,
• reducing the risk of errors related to the exhaust gas cleaning system.

For the user, this means more predictable operation, lower risk of unplanned downtime, and the ability to keep the vehicle in a technical condition acceptable both for daily driving and during periodic technical inspections.

System expansion and related Mercedes components

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional injectors, medium supply lines, or auxiliary fuel system components, check the available parts in the Other Mercedes injection system parts category.

When selecting used components for modern diesels, it is worth following proven service practices. For users interested in optimizing operating costs and making informed choices regarding aftermarket parts, an article describing how to combine savings with maintaining the appropriate technical standard may be helpful – more information can be found in the material: Used car parts for Mini Cooper – a way for style and savings.