Simplify Exhaust Performance with Dodge Ram Cummins 6.7L DOC & DPF 2020–2024 OEM 68259653AD
What is it?
The DOC & DPF assembly (OEM 68259653AD) for Dodge Ram Cummins 6.7L engines (2020–2024) combines two essential after-treatment elements—the Diesel Oxidation Catalyst (DOC) and the Diesel Particulate Filter (DPF)—into one integrated unit. This assembly helps process exhaust gases, reduce harmful emissions, and support efficient exhaust flow.
Why choose this DOC & DPF assembly?
Designed specifically for 2020–2024 Dodge Ram Cummins 6.7L engines, this OEM assembly ensures correct fitment and reliable operation. A restricted or worn DOC/DPF can lead to higher back-pressure, frequent regen cycles, loss of power, poor fuel economy, or emissions-related fault codes. Installing the proper replacement helps your exhaust system work as intended.
Key Benefits
✅ Combines DOC and DPF for streamlined emissions processing
✅ Supports stable regeneration and optimized exhaust flow
✅ Helps reduce back-pressure and cut down on system faults
✅ Direct-fit replacement—no modifications required
✅ Built for heavy-duty use and high-temperature environments
Applications
Ideal for Dodge Ram trucks equipped with Cummins 6.7L engines (2020–2024), particularly in on-highway or fleet environments where emissions control, reliability, and uptime are priorities.
Installation Notes
Allow the exhaust system to cool fully before servicing. Inspect the existing exhaust path, mounting hardware, and sensors for soot buildup or wear. Replace worn gaskets, clamps, and seals to ensure a secure installation. After fitting the new DOC/DPF assembly, clear any diagnostic codes and verify proper exhaust flow and regeneration behavior via system monitoring.
Final Thoughts
If your Ram’s exhaust system is showing frequent regenerations, elevated back-pressure, or emissions fault codes, upgrading to the OEM 68259653AD DOC/DPF assembly is the solution. With accurate fitment and durable construction, this component helps your truck operate cleaner, with smoother performance and dependable reliability.

