Cummins ISX DOC 2008-2010: OEM 4352289RX

Restore Clean Flow: Cummins ISX DOC 2008–2010 OEM 4352289RX

What is it?
The Cummins ISX Diesel Oxidation Catalyst (DOC) OEM 4352289RX is a remanufactured component designed for model years 2008–2010. As the first stage in the aftertreatment system, it plays a crucial role in reducing harmful gases like carbon monoxide and unburned hydrocarbons before they reach the Diesel Particulate Filter (DPF).

Why choose OEM 4352289RX?
This OEM remanufactured DOC is built to Cummins standards for durability, compatibility, and long-lasting performance. It’s the ideal replacement for engines struggling with excessive regen cycles, poor exhaust flow, or check engine warnings related to emissions.

Key Benefits
✅ OEM fit for direct bolt-on installation—no modifications needed
✅ Helps reduce exhaust emissions and supports DPF efficiency
✅ Improves fuel economy by reducing backpressure
✅ Cost-effective remanufactured unit with OEM performance standards
✅ Built for durability under high-temperature, high-load operation

Applications
The 4352289RX DOC is specifically made for Cummins ISX engines from 2008 to 2010. It’s used in heavy-duty trucks and commercial vehicles where emissions compliance and consistent power are essential to daily operation.

Installation Notes
Before beginning installation, allow the engine and exhaust system to cool completely. Inspect all mounting hardware, sensors, and gaskets—replacing worn components as needed. Follow OEM torque specs and clear fault codes after installation. Confirm successful regen and system readiness through diagnostic software.

Final Thoughts
Bring your ISX engine back to peak condition with the Cummins DOC OEM 4352289RX. This dependable replacement helps restore clean exhaust flow, reduce maintenance issues, and keep your truck running longer and stronger—mile after mile.