Cummins ISX DOC 2011-2013

Durable Oxidation Catalyst for Cummins ISX Engines (2011–2013)

What is it?
The Cummins ISX DOC (Diesel Oxidation Catalyst) for 2011–2013 engines transforms carbon monoxide (CO) and unburned hydrocarbons (HC) into cleaner gases before they move through the rest of the emissions system.

Why choose this DOC?
Specifically designed for ISX engines built between 2011 and 2013, this DOC ensures efficient oxidation while maintaining proper exhaust flow. Selecting the right unit helps safeguard downstream components, reduce backpressure, and prevent diagnostic issues caused by incorrect replacements.

Key Benefits
✅ Designed for Cummins ISX engines (2011–2013)
✅ Converts CO and HC into cleaner emissions
✅ Supports the performance of DPF and SCR systems
✅ Built to handle high temperatures and long hours of operation
✅ Direct-fit construction simplifies installation

Applications
Ideal for heavy-duty trucks, commercial vehicles, and industrial equipment powered by Cummins ISX engines from 2011 to 2013. This DOC functions as the first stage in the emission control process.

Installation Notes
Allow the engine and exhaust to cool completely before installation. Remove the old DOC and inspect surrounding pipes, sensors, and seals for damage. Install the new unit using fresh gaskets, torque bolts to Cummins specifications, and ensure proper sealing. After installation, clear any fault codes and perform a drive or regeneration cycle to confirm proper system function.

Final Thoughts
For ISX engines, this DOC offers long-lasting performance, dependable conversion efficiency, and the precise fit you need to keep your emissions system running clean and effective.