The Mercedes W204 OM642 Injector Housing Cover R is a precisely fitted component of the diesel engine fuel system, responsible for protecting the injector on the right side of the engine unit. It ensures stable mounting and protection against contamination, which contributes to uniform injector operation and proper diesel engine performance.
Specifications and technical data
- SKU: A6420161424
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A6420161424
- Substitutable numbers: A6420161424, A 642 016 14 24, A6420160824, A 642 016 08 24, BG
- Location on the vehicle: Right
- Fuel type: Diesel
- Category: Fuel Injectors
Purpose and Function in the Injection System
The injector housing cover in the OM642 engine plays a key role in protecting the injector from the effects of high temperature, moisture, and solid particles from the engine bay. A correctly selected cover helps maintain stable injector operating conditions, which translates to uniform fuel delivery and reduced risk of leaks.
This component is designed for diesel engines, so its geometry and mounting method are optimized for the specific characteristics of a diesel engine – higher injection pressures, greater thermal loads, and the need to maintain sealing in the cylinder head area.
Construction, Fit, and Right-Side Installation
The cover is designed as a part compatible with Mercedes factory solutions, ensuring a precise fit to the injector seat on the right side of the engine. Its appropriately shaped design facilitates the correct arrangement of lines and accompanying elements, minimizing the risk of stress and unwanted vibrations.
During installation, it is important to maintain the correct order of disassembly and reassembly of ancillary components, as well as to check the cleanliness of the injector seat. A correctly installed cover supports:
- stable injector positioning relative to the cylinder head,
- protection against dirt that could hinder subsequent servicing,
- maintaining predictable fuel system behavior over the long term.
Benefits of Using an Original Injector Cover
Using a dedicated injector housing in a diesel engine offers tangible operational benefits. This component supports the correct functioning of the fuel system, which can reduce the risk of common problems associated with injector leaks, seizing in the seat, or difficult removal during servicing.
- Better injector protection – the cover acts as a barrier against contaminants and moisture in the engine bay.
- Support for uniform diesel engine operation – stable injector conditions promote proper fuel atomization.
- Facilitates future repairs – a proper cover reduces the risk of the injector seizing and problems with its removal.
As a component in the Injector Nozzles category, this housing is an important addition to the entire injection system, influencing its durability and predictable operation.
Condition, Origin, and Service Application
The offered housing is a used part, originating from an original Mercedes fuel injection system. This type of OEM component is particularly valued in workshops specializing in diesel engines, where compatibility with the factory design and maintaining the original engine unit's operating parameters are crucial.
This solution is suitable for both standard replacement of injector ancillary components and for more advanced repairs related to the regeneration or replacement of injectors in the OM642 engine, especially on the right side of the vehicle.
Technical Support and Additional Materials
If you need a wider selection in the same parts group, check out other Mercedes injector nozzles available in our assortment: Mercedes injector nozzles. This will help you easily select complete fuel system components for your model.
To better understand how problems with diesel fuel injection systems manifest and what the consequences of neglecting injector protection are, it is worth reading the article: Diesel Injector Failures – How to Recognize Them and What Neglecting Them Entails. This is a practical addition to your knowledge when planning repairs or upgrades to the fuel system.
