Cummins ISC 8.3, ISL 9 DOC 2011-2013

Cleaner Exhaust, Stronger Performance: Cummins ISC 8.3 and ISL 9 DOC (2011–2013)

What is it?

The Cummins Diesel Oxidation Catalyst (DOC) is an essential emissions component that helps reduce harmful gases and keep your engine running clean. Designed for ISC 8.3 and ISL 9 engines, it oxidizes hydrocarbons and carbon monoxide, improving exhaust quality and supporting smoother, more efficient engine operation.

Why choose this DOC?

This DOC is manufactured to meet OEM standards for Cummins ISC 8.3 and ISL 9 engines built between 2011 and 2013. It restores proper exhaust flow, supports the Diesel Particulate Filter (DPF) during regeneration, and helps maintain emissions compliance. Built from high-quality materials, it’s designed to handle extreme temperatures and long service intervals.

Key Benefits

✅ Designed for Cummins ISC 8.3 and ISL 9 engines (2011–2013)
✅ Reduces hydrocarbons and carbon monoxide for cleaner exhaust
✅ Helps extend DPF lifespan and improve regeneration efficiency
✅ Resistant to corrosion, heat, and vibration
✅ Direct-fit replacement for quick, reliable installation

Applications

This DOC fits Cummins ISC 8.3 and ISL 9 engines used in heavy-duty trucks, buses, and vocational equipment produced between 2011 and 2013. It’s ideal for maintaining consistent engine performance and meeting emissions standards in demanding commercial operations.

Installation Notes

Before installing, inspect the exhaust system for damage or leaks. Clean all mounting surfaces and use new gaskets to ensure a proper seal. Torque fasteners to manufacturer specifications. After installation, perform a regeneration cycle to verify system functionality and stable exhaust flow.

Final Thoughts

When your Cummins ISC 8.3 or ISL 9 engine needs restored exhaust efficiency and cleaner emissions, this Diesel Oxidation Catalyst delivers the reliability and fitment you can depend on. Engineered for durability and compliance, it helps your vehicle stay road-ready and emission-friendly. Tamerx has it available and ready to ship today.