Description
Overview
RA6804909214 is a One Box used in the integrated aftertreatment module. It is designed for DETROIT DIESEL engines and supports housing and supporting DOC, DPF, and SCR components in a single assembly in heavy duty service. Detroit Diesel engines are common in Freightliner and Western Star class 8 highway tractors and vocational trucks.
What this part does
This integrated aftertreatment housing, often called a one box, contains multiple elements such as the DOC, DPF, and SCR catalyst in a single assembly.
Where this part fits
This part is generally used on DETROIT DIESEL engine platforms installed in class 8 trucks and heavy equipment. Exact fitment depends on the specific engine family, emission level, and chassis configuration.
Installation and replacement notes
- Confirm compatibility with the engine family and emission certification level before ordering.
- Inspect related components for damage or contamination that may have contributed to the original failure.
- Follow OEM torque specifications and service procedures during installation.
- When servicing a one box assembly follow OEM lifting and support instructions and evaluate the condition of all internal components.
Specifications
- Part type: One Box
- OEM or application group: DETROIT DIESEL
Related components
During service you may also need clamps, gaskets, sensors, mounting hardware, or additional aftertreatment components depending on the specific installation.



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