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With a diverse product catalog, Roadwarrior is the only aftermarket manufacture to offer customer SCR & One-Box options for Heavy Duty Diesel Engines!
New for your Detroit Diesel: All Roadwarrior C0080-SA & C0088-SA orders now ship with a 2-in-1 Clamp & Gasket in the box!
ROADWARRIOR manufacturing facilityROADWARRIOR has relocated its manufacturing operation to a larger facility which has enabled increased output to meet the rising demand for ROADWARRIOR's DPFs, DOCs and SCRs.

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 DOCs on the market.