Essential Emissions Filtration for Cummins B6.7 (2018–2024)
What is it?
The Cummins B6.7 DOC Filter OEM 4394820 is a key component in the Diesel Oxidation Catalyst (DOC) of your engine’s aftertreatment system. It’s designed to oxidize and reduce harmful exhaust pollutants—such as hydrocarbons and carbon monoxide—before they continue through the emissions system, helping your engine run cleaner and meet regulatory standards.
Why choose OEM 4394820?
This DOC filter is built specifically for Cummins B6.7 engines produced from 2018 through 2024. Its exact-fit design ensures proper integration with your vehicle’s emissions system, reducing the risk of system faults and maintaining consistent performance over time. With OEM construction, you get enduring quality and dependable operation.
Key Benefits
✅ Designed for 2018–2024 Cummins B6.7 engines
✅ Helps lower hydrocarbons and carbon monoxide in exhaust
✅ Aids smoother overall aftertreatment function
✅ Built to withstand high exhaust temperatures
✅ Direct-fit replacement for easier installation
Applications
This DOC filter is ideal for Cummins B6.7-powered trucks and equipment manufactured between 2018 and 2024. Typical uses include light- and medium-duty commercial vehicles, delivery trucks, vocational fleets, and other diesel-powered machinery requiring effective emissions control.
Installation Notes
Ensure the exhaust and aftertreatment system are cool before starting the installation. Inspect nearby sensors, gaskets, and connections for wear or damage. Follow Cummins’ recommended installation procedures and torque values for proper sealing. After installation, confirm the emissions system is operating as expected.
Final Thoughts
If your Cummins B6.7 engine is showing emissions-related alerts or diminished aftertreatment performance, the OEM 4394820 DOC filter offers a reliable, OE-grade replacement. Designed for a correct fit and dependable emissions control, it helps keep your engine compliant and running efficiently. Tamerx has this DOC filter in stock and ready to ship.