Efficient Exhaust Treatment: Cummins ISM / ISL DOC (2008–2010)
What is it?
The Cummins ISM / ISL DOC (Diesel Oxidation Catalyst) for model years 2008–2010 helps convert carbon monoxide (CO) and unburned hydrocarbons (HC) in exhaust gases into less harmful substances—serving as the first step in your engine’s aftertreatment chain.
Why choose this DOC?
Built specifically for ISM and ISL engines from 2008 to 2010, this DOC is optimized to deliver oxidation performance without restricting exhaust flow. Using the correct match safeguards downstream components and helps prevent issues like backpressure build-up or emission system faults due to incompatible parts.
Key Benefits
✅ Manufactured for Cummins ISM & ISL engines (2008–2010)
✅ Converts CO and hydrocarbons into safer exhaust gases
✅ Supports downstream filters and catalysts
✅ Withstands high exhaust temperatures and sustained use
✅ Direct-fit design for accurate and confident installation
Applications
Ideal for trucks, vocational vehicles, and industrial equipment using ISM or ISL engines from 2008–2010. This DOC handles the initial stage of exhaust treatment before gases progress to DPF or SCR systems.
Installation Notes
Ensure the engine and exhaust are fully cooled. Remove the existing DOC and inspect surrounding piping, sensors, and flanges. Install the new unit using fresh gaskets, torque hardware to Cummins’ specs, and verify all connections. After installation, monitor system diagnostics and exhaust flow to confirm correct operation.
Final Thoughts
When it’s time to support your emissions system with dependable oxidation performance, this DOC for ISM / ISL engines provides the necessary balance of durability, correct fit, and effective conversion.