Cleaner Miles Ahead: Cummins ISX DOC (2014–2017)
What is it?
The Cummins ISX Diesel Oxidation Catalyst (DOC) for 2014–2017 is a crucial emissions component that transforms harmful gases like carbon monoxide (CO) and unburned hydrocarbons (HC) into safer outputs before they move through the rest of the exhaust system.
Why choose this DOC?
Specifically designed for ISX engines built between 2014 and 2017, this DOC delivers reliable oxidation performance without disrupting exhaust flow. The correct fit helps protect downstream systems, reduces backpressure, and minimizes the risk of diagnostic faults caused by mismatched components.
Key Benefits
✅ Perfect match for Cummins ISX engines (2014–2017)
✅ Converts CO and hydrocarbons into cleaner emissions
✅ Works seamlessly with downstream DPF or SCR systems
✅ Built to withstand high exhaust temperatures and extended use
✅ Direct-fit design allows for easy, precise installation
Applications
This DOC is ideal for heavy-duty trucks, buses, and industrial vehicles powered by Cummins ISX engines from 2014–2017. It serves as the first catalytic stage in your emission control system, improving both environmental compliance and long-term performance.
Installation Notes
Ensure the engine and exhaust are completely cooled before installation. Remove the old DOC, inspect all surrounding pipes, seals, and sensors for damage, and install the new unit using fresh gaskets. Torque fasteners to Cummins specifications, confirm proper sealing, and clear any diagnostic codes. Run a drive or regeneration cycle to verify system efficiency.
Final Thoughts
For ISX engines, this DOC delivers durability, precision, and dependable performance—helping you stay compliant, efficient, and on the road with cleaner emissions.