Rev Up Emissions Cleanup: Cummins ISX DOC (2014–2017)
What is it?
The Cummins ISX DOC (Diesel Oxidation Catalyst) for 2014–2017 converts carbon monoxide (CO) and unburned hydrocarbons (HC) into safer gases before they enter downstream emissions systems.
Why choose this DOC?
Specifically engineered for ISX engines in the 2014–2017 range, this DOC provides efficient oxidation while maintaining proper exhaust flow. Using the right unit helps protect downstream components, avoid backpressure problems, and reduce the risk of diagnostic issues from incompatible or poor replacements.
Key Benefits
✅ Suited for Cummins ISX models (2014–2017)
✅ Converts CO and hydrocarbons into safer exhaust byproducts
✅ Aids performance of DPF or SCR systems
✅ Durable construction for high heat and long duty cycles
✅ Direct-fit design for accurate, straightforward installation
Applications
Built for heavy trucks, vocational vehicles, and industrial machines powered by Cummins ISX engines in the 2014–2017 window. This DOC acts as the first oxidation stage in your emission control setup.
Installation Notes
Always work on a fully cooled engine and exhaust system. Remove the existing DOC, inspect adjacent pipes, sensors, and seals for wear or damage. Install the replacement component using new gaskets, torque fasteners to Cummins’ specifications, and verify proper sealing. After installation, clear any diagnostic codes and run a drive or regeneration cycle to confirm full system operation.
Final Thoughts
When your ISX engine needs an efficient conversion catalyst, this DOC offers the proper balance of performance, durability, and compatibility to support your broader emissions strategy.