Cummins DOC : OEM 4353289RX

Clear the Exhaust, Keep Rolling: Cummins DOC OEM 4353289RX

What is it?
The Cummins DOC (Diesel Oxidation Catalyst) OEM 4353289RX is a remanufactured emissions control component that serves as the first stage in your exhaust aftertreatment system. It transforms carbon monoxide and hydrocarbons into less harmful gases before they reach the Diesel Particulate Filter (DPF), promoting a cleaner burn and more efficient system operation.

Why choose OEM 4353289RX?
Remanufactured to Cummins' original equipment specifications, the 4353289RX delivers consistent performance, long-term durability, and a perfect fit—all while offering significant cost savings. It’s a smart replacement choice when your engine is suffering from inefficient regens, high backpressure, or failed emissions tests.

Key Benefits
✅ OEM-spec design ensures correct fit and easy installation
✅ Enhances DPF function and reduces regen frequency
✅ Promotes smoother exhaust flow and cleaner emissions
✅ Durable construction handles heavy-duty cycles and heat
✅ Affordable alternative to brand-new units with OEM performance

Applications
The 4353289RX DOC is ideal for Cummins engines used in heavy-duty trucks, buses, and industrial applications. Whether you manage a fleet or operate solo, this DOC helps ensure compliance, efficiency, and uptime in demanding environments.

Installation Notes
Let the exhaust system fully cool before installation. Inspect all clamps, gaskets, and sensors—replace as needed. Use factory torque specs for sealing components. After install, clear any active fault codes and confirm the aftertreatment system is functioning correctly.

Final Thoughts
When your Cummins exhaust system isn’t flowing like it should, the DOC OEM 4353289RX from Tamerx offers a solid fix. Get your system back on track with reliable performance, fewer regens, and long-haul confidence—all at a cost-effective price.