Cummins ISX DOC 2011-2013

Emission Control Upgrade for Cummins ISX Engines (2011–2013)

What is it?
The Cummins ISX DOC (Diesel Oxidation Catalyst) designed for 2011–2013 engines converts carbon monoxide (CO) and unburned hydrocarbons (HC) into safer gases before they reach downstream emission components.

Why choose this DOC?
This DOC is engineered specifically for ISX models from 2011 to 2013, offering effective conversion while preserving exhaust flow. Using the correct module helps protect downstream parts, prevents backpressure buildup, and reduces the chance of fault codes from mismatched or low-quality alternatives.

Key Benefits
✅ Suited for Cummins ISX models (2011–2013)
✅ Converts CO and hydrocarbons into safer emissions
✅ Assists downstream DPF or SCR systems
✅ Robust construction handles extreme heat and continuous use
✅ Direct-fit design for precise, hassle-free installation

Applications
This DOC is suitable for trucks, heavy vehicles, or industrial equipment equipped with Cummins ISX engines from 2011 to 2013, supporting their emission systems from the first catalytic stage forward.

Installation Notes
Work only after the engine and exhaust have fully cooled. Remove the old DOC and inspect adjoining piping, flanges, sensors, and seals for wear or damage. Fit the new unit using fresh gaskets, torque hardware to Cummins specs, and confirm all sealing points. After installation, clear fault codes and run a regeneration or drive test to ensure full functionality.

Final Thoughts
For ISX engines between 2011 and 2013, this DOC provides the correct blend of conversion capacity, dependability, and compatibility necessary to support your emissions path and maintain system longevity.