Dodge Ram Cummins 6.7L DOC 2007-2012: OEM 52122196AD

Improve Exhaust Oxidation Efficiency with a DOC for Dodge Ram Cummins 6.7L Engines

What is it?
The Dodge Ram Cummins 6.7L Diesel Oxidation Catalyst (DOC), identified by OEM 52122196AD, is an emissions aftertreatment component designed for Dodge Ram Cummins 6.7L diesel engines produced between 2007 and 2012. Positioned ahead of the Diesel Particulate Filter (DPF), the DOC begins the exhaust treatment process by converting hydrocarbons and carbon monoxide into less harmful emissions while generating the heat needed to support efficient DPF regeneration.

Why choose this DOC?
A properly functioning DOC is essential for maintaining dependable aftertreatment performance and supporting downstream emissions components. This DOC is manufactured to match Dodge Ram Cummins 6.7L specifications, ensuring compatibility with factory-installed sensors, DPF assemblies, and exhaust system components. Over time, catalyst materials can become less effective due to soot accumulation, contamination, and repeated exposure to high exhaust temperatures. Replacing the DOC with the correct OEM-matched component helps maintain efficient exhaust oxidation, proper regeneration performance, and reliable emissions control.

Key Benefits
✅ Designed for Dodge Ram Cummins 6.7L engines (2007–2012)
✅ Supports the first stage of the diesel aftertreatment process
✅ Helps promote efficient DPF regeneration and exhaust flow
✅ Direct-fit replacement for accurate installation
✅ Built for durability in demanding diesel truck applications

Applications
This DOC is used on Dodge Ram 2500 and 3500 trucks equipped with Cummins 6.7L diesel engines from 2007 through 2012. These trucks are commonly used for towing, commercial fleets, agriculture, construction, and other heavy-duty applications where dependable emissions control and consistent engine operation are essential.

Installation Notes
Before installation, allow the exhaust and aftertreatment system to cool completely. Remove the existing DOC and inspect nearby temperature sensors, clamps, gaskets, and exhaust connections for contamination or wear. Install the replacement DOC using the appropriate mounting hardware and sealing components to ensure proper alignment and a leak-free fit. After installation, verify proper regeneration performance and clear any stored fault codes using approved diagnostic equipment.

Final Thoughts
If your Dodge Ram Cummins 6.7L-powered truck is experiencing reduced catalyst efficiency, regeneration concerns, or emissions-related warning lights, replacing the DOC with the correct OEM component can help maintain reliable aftertreatment performance. The Dodge Ram Cummins 6.7L DOC (OEM 52122196AD) plays a critical role in supporting efficient exhaust oxidation, dependable emissions control, and long-lasting diesel engine operation.