Ensuring your diesel engine’s emissions control system operates cleanly begins with the Diesel Oxidation Catalyst (DOC). The OEM 4965304RX DOC delivers precise pollutant conversion, safeguarding downstream components and enhancing the overall performance of your aftertreatment system. Genuine Cummins specifications make this replacement a dependable first step toward improved system longevity and cleaner exhaust emissions.
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Efficient Breakdown of Harmful Exhaust Compounds
The OEM 4965304RX DOC converts hydrocarbons and carbon monoxide into less harmful byproducts. This cleaner exhaust stream helps protect critical components downstream, like the DPF and SCR, from unnecessary stress and buildup. -
Prevents Contaminants from Cascading Through the System
A functional DOC acts as the first defense line—limiting fuel-derived contaminants from reaching particulate filters and NOx reduction modules, reducing the risk of sensor fouling and catalyst degradation. -
Supports Consistent Regeneration Cycles
By maintaining consistent exhaust quality and temperature, the OEM 4965304RX helps sustain effective DPF regeneration, reducing forced regen events and minimizing maintenance interruptions. -
Smooth Installation with OEM Precision
Engineered to meet Cummins original specifications, this DOC is crafted for seamless substitution—no adaptation needed. That ensures hassle-free servicing and dependable fitment. -
Backed by Warranty with Easy Core Return
The OEM 4965304RX comes with comprehensive warranty protection, reinforcing confidence in its durability. Plus, the streamlined core return process simplifies replacement—return your old DOC promptly and reduce your service cost.
Starting your aftertreatment cleanup with the right DOC matters. The OEM 4965304RX sets the stage for cleaner exhaust, smoother regeneration, and better protection for the entire emissions control system. Trust in Tamerx Diesel Parts to deliver OEM-quality components that support long-term reliability and cleaner engine operation.