AdBlue Injector Mercedes W907 Diesel OM654 Additive Nozzle Hose A0004905300

Mercedes W907 Diesel OM654 AdBlue Injector A0004905300 is an original fuel system component designed for Mercedes diesel engines from the OM654 family, equipped with an AdBlue-based nitrogen oxide reduction system. This component, from the Other Injection System Parts group, ensures the proper functioning of the exhaust gas treatment system and stable performance parameters of the Diesel engine unit.

Specifications and technical data

• SKU: A0004905300
• 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 Role in the Injection System

The presented AdBlue injector works with Diesel engines where urea solution is dosed into the exhaust system to reduce NOx emissions. This element is responsible for precisely delivering the medium to the SCR catalyst, which translates into stable performance, correct operation of the exhaust gas treatment system, and compliance with current emission standards.

By using an OEM solution from Mercedes, full compatibility with the vehicle's factory installation, correct dosing characteristics, and proper cooperation with the control electronics are maintained. This is particularly important in modern OM654 units, where the injection system and AdBlue system are tightly integrated.

Benefits of Using an Original AdBlue Injector

Choosing the right AdBlue injector directly impacts the engine's durability and smoothness, as well as prevents errors in the engine control unit and on the dashboard. Using this component ensures, among other things:

• maintaining proper AdBlue solution dosing across the entire engine load range,
• stable SCR system operation without unwanted fault messages,
• reduced risk of the unit entering limp mode due to emission errors,
• consistency with the factory engine control unit calibration for OM654 units.

By choosing this part, you are investing in a functional exhaust gas treatment system, which translates into predictable fuel consumption, correct dynamics, and compliance with technical inspection requirements.

Technical Characteristics and Vehicle Integration

The AdBlue injector in this offer belongs to the Other Injection System Parts group, meaning it works with the main engine fuel supply system but is responsible for a separate circuit of the emission-reducing medium. The element is designed to operate in high exhaust gas temperatures and variable pressure conditions, considering the specifics of urea solution.

Original manufacturing ensures:

• appropriately selected AdBlue spray pattern in the exhaust gas stream,
• correct mechanical and electrical connectors matched to the Mercedes W907 installation,
• possibility of installation without modifications to the exhaust system or wiring harness.

This allows for an organized installation process and reduces the risk of leaks or improper injector seating.

Component Condition and Installation Recommendations

The offered AdBlue injector is a used part, allowing for an economical repair of the system while maintaining the original manufacturer's specifications. Before installation, it is recommended to check the AdBlue system for contamination and the correct operation of the pump and lines, so that the newly installed component operates under the most favorable conditions possible.

During installation, it is worth paying attention to:

• proper cleaning of the mounting seat in the exhaust system,
• checking the condition of seals and replacing them with new ones if necessary,
• accurate connection of electrical connectors and medium lines.

Technical Support and Related Content

If you are modernizing or servicing the fuel and exhaust gas treatment system in your Mercedes and also need other parts from the Other Injection System Parts group dedicated to this brand, check the available parts in the category Mercedes Other Injection System Parts.

During service work, systems responsible for driving comfort are often serviced concurrently, so practical tips on selecting and operating components responsible for cabin temperature may be useful – a detailed discussion can be found in the article Air Conditioning and Heating – Parts Selection and Maintenance for Year-Round Comfort.

If your goal is also to improve engine response and overall vehicle performance while maintaining a functional injection and AdBlue system, it is worth familiarizing yourself with the guide on safe tuning, available in the material How to Increase Engine Power: A Practical Guide to Tuning Engines with Used Parts.