Diesel Oxidation Catalyst

Restore emissions performance with OEM quality Diesel Oxidation Catalysts (DOCs) from Turbochargers Direct. Our selection of high-quality DOC units is designed to oxidize carbon monoxide, hydrocarbons, and soluble organic fractions in diesel exhaust to meet modern emissions standards. Whether you're replacing a failed unit or upgrading for improved performance, we offer direct-fit DOC solutions for a wide range of diesel engines, including Cummins, Caterpillar, International, Detroit Diesel, and more. Each catalyst is engineered for durability, optimal flow, and seamless compatibility with your diesel aftertreatment system. Count on Turbochargers Direct for fast shipping, expert support, and dependable DOC parts to keep your diesel vehicle compliant and performing at its best.