Cummins ISC 8.3, ISL 9 DOC 2011-2013

Keep Your Cummins Engine Performing Clean and Strong: ISC 8.3, ISL 9 DOC (2011–2013)

What is it?

The Cummins Diesel Oxidation Catalyst (DOC) is a vital emissions control component designed to convert harmful exhaust gases into less harmful emissions. Made for ISC 8.3 and ISL 9 engines, it promotes smooth exhaust flow, supports proper regeneration, and ensures your vehicle stays emissions compliant while maintaining consistent engine performance.

Why choose this DOC?

Engineered to OEM specifications, this DOC fits Cummins ISC 8.3 and ISL 9 engines manufactured between 2011 and 2013. It restores exhaust efficiency, enhances Diesel Particulate Filter (DPF) performance, and reduces soot buildup that can cause poor fuel economy or power loss. Built with durable, heat- and corrosion-resistant materials, it’s designed for long-lasting reliability even in demanding driving conditions.

Key Benefits

✅ Designed for Cummins ISC 8.3 and ISL 9 engines (2011–2013)
✅ Converts exhaust gases for cleaner, efficient operation
✅ Supports DPF regeneration and balanced exhaust flow
✅ Constructed with corrosion- and heat-resistant materials
✅ Direct-fit replacement ensures fast, accurate installation

Applications

This DOC fits medium- and heavy-duty Cummins ISC 8.3 and ISL 9 engines from 2011 to 2013. It’s ideal for fleet operators and truck owners who rely on dependable emissions control, efficient operation, and long-term durability in their vehicles.

Installation Notes

Inspect the exhaust system before installation for cracks, buildup, or leaks. Clean all connection flanges, replace gaskets, and torque bolts according to Cummins specifications. After installation, perform a regeneration cycle to verify proper exhaust temperature and system performance.

Final Thoughts

When your Cummins ISC 8.3 or ISL 9 engine begins to show signs of restricted exhaust flow or frequent regenerations, this Diesel Oxidation Catalyst delivers the OEM-quality performance you can trust. Built for strength, endurance, and compliance, it helps keep your truck running clean, reliable, and road-ready. Tamerx has it in stock and ready to ship today.