Engineered for Clean Power: Cummins ISX DOC (2014–2017)
What is it?
The Cummins ISX Diesel Oxidation Catalyst (DOC) for 2014–2017 is a vital exhaust treatment component designed to convert carbon monoxide (CO) and unburned hydrocarbons (HC) into less harmful gases, setting the stage for cleaner emissions and smoother engine performance.
Why choose this DOC?
Built precisely for Cummins ISX engines from 2014 to 2017, this DOC ensures efficient oxidation while maintaining consistent exhaust flow. Installing the proper unit helps prevent backpressure, safeguards downstream systems, and reduces the risk of error codes caused by mismatched components.
Key Benefits
✅ Designed for Cummins ISX engines (2014–2017)
✅ Converts CO and HC into environmentally safer gases
✅ Supports and extends the life of downstream DPF or SCR units
✅ Heavy-duty construction withstands extreme heat and vibration
✅ Direct-fit replacement for quick and accurate installation
Applications
Perfect for heavy trucks, buses, and industrial vehicles using Cummins ISX engines manufactured between 2014 and 2017. This DOC serves as the first stage of your exhaust aftertreatment system, ensuring efficient emissions conversion and compliance.
Installation Notes
Begin installation only when the engine and exhaust are fully cooled. Remove the old DOC and inspect adjoining pipes, seals, and sensors for wear. Install the new unit with fresh gaskets, torque bolts to Cummins specifications, and confirm all seals are secure. After installation, clear diagnostic codes and run a drive or regeneration cycle to confirm system integrity.
Final Thoughts
For ISX engines, this DOC offers the perfect blend of durability, performance, and precise engineering—keeping your emissions system efficient, compliant, and ready for every mile.