Built for Clean Power: Cummins ISX DOC (2014–2017)
What is it?
The Cummins ISX Diesel Oxidation Catalyst (DOC) for 2014–2017 engines plays a vital role in your truck’s emissions system. It converts harmful gases—such as carbon monoxide (CO) and unburned hydrocarbons (HC)—into cleaner, safer emissions before they move through the rest of the exhaust aftertreatment system.
Why choose this DOC?
Designed specifically for Cummins ISX engines built between 2014 and 2017, this DOC ensures proper oxidation and smooth exhaust flow. The precise OEM-style fit helps maintain consistent performance, prevent backpressure issues, and protect downstream components like the DPF and SCR from damage or early wear.
Key Benefits
✅ Tailored for Cummins ISX engines (2014–2017)
✅ Converts harmful exhaust gases into cleaner output
✅ Maintains efficient DPF and SCR operation
✅ Engineered to handle high heat and rugged conditions
✅ Direct-fit design for hassle-free installation
Applications
This DOC is perfect for heavy-duty trucks and commercial vehicles powered by Cummins ISX engines from 2014–2017. It serves as the first step in the emissions control process, ensuring your engine runs clean and dependable mile after mile.
Installation Notes
Ensure the exhaust system is completely cool before installation. Remove the old DOC, inspect all adjoining parts—pipes, clamps, and sensors—for wear or damage, and replace as needed. Install the new DOC with fresh gaskets, torque all bolts to Cummins specifications, and reset any diagnostic codes. After installation, perform a short drive or regeneration cycle to confirm proper function.
Final Thoughts
The Cummins ISX DOC for 2014–2017 delivers dependable performance, precise fit, and long-lasting durability. It’s the trusted solution to keep your emissions system efficient, compliant, and ready for every haul.