Efficient Emissions Filtration for Cummins N13 (2018–2021)
What is it?
The Cummins N13 DOC Filter OEM 4394756 is a key emissions control component located in the Diesel Oxidation Catalyst (DOC) of your engine’s aftertreatment system. It helps oxidize harmful exhaust pollutants—such as hydrocarbons and carbon monoxide—into less harmful gases, contributing to cleaner exhaust output and improved overall emissions performance.
Why choose OEM 4394756?
This DOC filter is engineered specifically for Cummins N13 engines manufactured from 2018 through 2021. Its exact-fit design ensures seamless integration with your vehicle’s original aftertreatment components, helping reduce system faults and sustain consistent, reliable emissions control. With OEM-grade construction, you’re choosing durability and dependable operation.
Key Benefits
✅ Designed for 2018–2021 Cummins N13 engines
✅ Helps lower hydrocarbons and carbon monoxide in exhaust
✅ Supports smoother aftertreatment system performance
✅ Built to tolerate high-temperature exhaust conditions
✅ Direct-fit replacement for straightforward installation
Applications
This DOC filter is ideal for Cummins N13-powered heavy-duty trucks and equipment produced between 2018 and 2021. Common uses include over-the-road tractors, vocational vehicles, fleet trucks, and other diesel-powered machines that depend on compliant emissions systems for daily performance.
Installation Notes
Make sure the exhaust and aftertreatment system are fully cooled before beginning installation. Inspect nearby sensors, gaskets, and connections for wear or contamination. Follow Cummins-recommended installation procedures and torque specifications to ensure proper sealing and performance. After installation, verify that the emissions system is functioning correctly.
Final Thoughts
If your Cummins N13 engine is showing emissions-related alerts or reduced aftertreatment effectiveness, the OEM 4394756 DOC filter delivers a reliable, OE-grade replacement option. Built for accurate fit and consistent emissions control, it helps keep your engine compliant and operating efficiently. Tamerx has this DOC filter in stock and ready to ship.