Cummins ISC DOC 2008-2010

Emissions Control for ISC Series – Cummins ISC DOC (2008–2010)

What is it?
The DOC (Diesel Oxidation Catalyst) for Cummins ISC engines (2008–2010) oxidizes hydrocarbons (HC) and carbon monoxide (CO) in the exhaust stream before they reach downstream emission hardware. It’s a key component in reducing harmful emissions.

Why choose this OEM DOC?
This DOC is built to Cummins’ factory standards, ensuring proper exhaust flow, backpressure balance, and durability. Using the OEM version helps prevent diagnostic faults, flow restrictions, and performance issues common with off‑spec replacements.

Key Benefits
 ✅ Direct‑fit for Cummins ISC (2008–2010)
 ✅ Effective oxidation of HC and CO
 ✅ Maintains proper exhaust flow and avoids excess backpressure
 ✅ Durable construction for high-temperature operation
 ✅ Compatible with factory emission systems and sensors

Applications
Used in trucks and equipment powered by Cummins ISC engines in the 2008–2010 range. The DOC is part of the aftertreatment system that helps keep emissions under regulatory limits.

Installation Notes
Installation should be handled by a trained technician. Begin with the exhaust system cool. Remove the old DOC and inspect mounting surfaces. Clean and replace flanges or gaskets as needed. Install the new DOC and torque bolts to Cummins specifications. Afterward, inspect for leaks, verify exhaust flow, and clear any emissions system fault codes.

Final Thoughts
If your ISC engine is showing emissions faults or underperforming, replacing the DOC with the correct unit for 2008–2010 restores oxidation capability and emission integrity. It supports downstream components and helps your engine run cleaner and more reliably.