Restore Clean Flow Fast: Cummins ISX DOC OEM 4329542RX
What is it?
The Cummins ISX Diesel Oxidation Catalyst (DOC) OEM 4329542RX is a remanufactured exhaust component that helps convert carbon monoxide and unburned hydrocarbons into less harmful emissions. It’s the first line of treatment in your aftertreatment system and is essential for supporting DPF efficiency and reducing system stress.
Why choose OEM 4329542RX?
This remanufactured DOC meets Cummins' OEM standards, providing reliable performance, exact fitment, and dependable durability. It’s an ideal solution when your ISX is showing signs of regen failure, poor fuel economy, or diagnostic trouble codes tied to a failing DOC.
Key Benefits
✅ OEM-quality remanufactured part for trusted performance
✅ Enhances DPF efficiency and supports stable regen cycles
✅ Reduces backpressure, helping fuel economy and power
✅ Built to withstand extreme heat and operating conditions
✅ Direct-fit design makes installation simple and quick
Applications
The 4329542RX DOC is designed for Cummins ISX engines found in heavy-duty trucks and vocational equipment. It’s ideal for fleet managers and independent operators needing to maintain consistent emissions performance while reducing downtime and long-term costs.
Installation Notes
Ensure the exhaust system is fully cooled before starting. Inspect and replace any worn gaskets, clamps, or sensors. Install the DOC using OEM torque specifications. Afterward, clear system codes and verify proper regen functionality.
Final Thoughts
If your ISX exhaust system is underperforming, the Cummins DOC OEM 4329542RX from Tamerx offers a smart fix. Restore clean flow, reduce regen issues, and keep your truck running reliably with this cost-effective, OEM-grade solution.