About Us


Roadwarrior Inc. manufactures a broad range of Diesel Particulate Filters (DPFs), Diesel Oxidation Catalysts (DOCs) and Selective Catalytic Reduction (SCRs) for post-2007, medium to heavy duty trucks and buses. Our aftermarket DPFs and Catalysts are available for all major manufacturers and provide equal or greater performance to OEM parts without the added cost of core charges. With over 150 designs, and counting, Roadwarrior has the largest selection of aftermarket DPFs and Catalysts on the market. If your vehicle’s emission control system needs replacement, parts are in stock and available for same day shipment from one of our twelve convenient warehouses.

Roadwarrior parts are direct fit replacements for OEM systems to ensure that installation is as quick and easy as possible. Roadwarrior parts include all necessary ports and attachments for sensors and are constructed in North America, using high quality materials, to ensure a long service life.

Roadwarrior has conducted extensive comparative testing of our DPF units against OEM models, in both field and laboratory settings, to ensure that backpressure, temperature, and regeneration performance meets the standards set by the original manufacturer. All Roadwarrior parts are backed with a one-year warranty.