A high-performing aftertreatment system starts with the Diesel Oxidation Catalyst—it's the first line of defense against harmful emissions. The OEM 4965223RX DOC is crafted to Cummins’ stringent specifications, ensuring efficient conversion of exhaust pollutants like hydrocarbons and carbon monoxide. Investing in this authentic replacement helps protect downstream components, promotes smooth DPF regeneration, and preserves system integrity.
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Converts pollutants early in the exhaust stream, reducing the load on downstream filters and sensors, and helping maintain their longevity.
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Supports reliable and predictable DPF regeneration by delivering cleaner exhaust flow and maintaining optimal temperature levels, reducing forced regens and maintenance disruptions.
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Shields sensitive components like SCR catalysts and NOx sensors from contaminant buildup—preventing early wear and costly repairs.
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Offers seamless replacement thanks to precise OEM engineering, ensuring fast, accurate installation and peace of mind.
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Comes with warranty protection and a streamlined core return process, making maintenance easier and more cost-effective.
Swapping in the OEM 4965223RX DOC isn’t just about replacing a part—it’s about reinforcing your ISM’s first layer of emissions defense. For cleaner exhaust, smoother operations, and better aftertreatment health, count on Tamerx Diesel Parts’ reliable, OEM-quality solutions.