Ignite Cleaner Output: Cummins ISX DOC 2011–2013
What is it?
The Cummins ISX Diesel Oxidation Catalyst (DOC) for model years 2011–2013 transforms carbon monoxide (CO) and unburned hydrocarbons (HC) in your exhaust into cleaner compounds early in the emissions chain.
Why choose this DOC?
Purpose-crafted for ISX engines of the 2011–2013 era, this DOC balances catalytic efficiency and airflow. Using the correct unit helps preserve downstream components, avoid backpressure issues, and reduce fault codes linked to improper parts.
Key Benefits
✅ Designed for Cummins ISX engines (2011–2013)
✅ Converts CO and hydrocarbons into safer exhaust gases
✅ Prepares output for downstream DPF or SCR systems
✅ Rugged construction for high temps and extended use
✅ Direct-fit form factor simplifies installation
Applications
Ideal for trucks, fleets, and heavy machinery powered by ISX engines from 2011–2013. This DOC serves as the first catalytic step in your exhaust treatment process.
Installation Notes
Always begin when engine and exhaust are fully cooled. Remove the existing DOC, inspect surrounding piping, sensors, and seals for wear. Mount the replacement with new gaskets, torque bolts to Cummins specs, and confirm tight sealing. After installation, reset any error codes and run a drive or regeneration test to confirm proper function.
Final Thoughts
For stronger emissions control in your ISX engine, this DOC brings the performance, durability, and compatibility you need—helping keep your system clean and compliant.