Cummins X15 DOC Filter 2018-2021: OEM 4394901

Advanced Aftertreatment Filtration for Cummins X15 (2018–2021)

What is it?
The Cummins X15 DOC Filter OEM 4394901 is an essential emissions control component installed in the Diesel Oxidation Catalyst (DOC) of your engine’s aftertreatment system. It works to oxidize harmful exhaust pollutants—such as hydrocarbons and carbon monoxide—into less harmful compounds before the exhaust travels further through the system. This helps your engine produce cleaner emissions and maintain efficient operation.

Why choose OEM 4394901?
This DOC filter is engineered specifically for Cummins X15 engines manufactured from 2018 through 2021. Its precise OEM-grade build ensures reliable fitment and compatibility with your vehicle’s factory aftertreatment components, helping minimize emissions faults and support steady performance. With genuine OEM quality, you’re choosing durability and dependable emissions control.

Key Benefits
✅ Designed for 2018–2021 Cummins X15 engines
✅ Helps reduce hydrocarbons and carbon monoxide in exhaust
✅ Enhances aftertreatment system performance
✅ Built to withstand high-temperature exhaust environments
✅ Direct-fit replacement for easy installation

Applications
This DOC filter is ideal for Cummins X15-powered heavy-duty trucks and equipment built between 2018 and 2021. Common applications include highway tractors, vocational fleets, delivery rigs, and other diesel machines that depend on compliant emissions control systems for daily use.

Installation Notes
Before installation, ensure the exhaust and aftertreatment system are fully cooled. Inspect nearby sensors, gaskets, and connectors for signs of wear or contamination. Follow Cummins-recommended installation procedures and torque specifications to ensure proper sealing and dependable function. After installation, verify that the emissions system is working correctly.

Final Thoughts
If your Cummins X15 engine shows emissions-related alerts or decreased aftertreatment efficiency, the OEM 4394901 DOC filter provides a reliable, OE-grade replacement solution. Designed for precise fit and consistent emissions control, it helps keep your engine compliant and running efficiently. Tamerx has this DOC filter in stock and ready to ship.