ROADWARRIOR C0185-ID Direct Fit Replacement Diesel Oxidation Catalyst (DOC) for Navistar Maxxforce

Manufacturer

ROADWARRIOR

Features & Benefits

• Direct-fit layout follows the Navistar MaxxForce exhaust path closely
• Catalyst substrate promotes oxidation before exhaust reaches downstream filters
• Metal canister protects the internal core from heat and vibration
• Exhaust flow path helps aftertreatment parts work in the right order

Roadwarrior Diesel Oxidation Catalyst (DOC)

The Roadwarrior Diesel Oxidation Catalyst (DOC) gives Navistar MaxxForce exhaust systems a direct-fit catalyst section for handling oxidation before gases move farther downstream. Exhaust passes through the catalyst substrate, where heat and coated surfaces help convert certain pollutants into less harmful compounds. This part becomes important during emissions service because a restricted or failing DOC can affect exhaust flow, raise fault activity, or interfere with downstream aftertreatment performance. Shops working on MaxxForce trucks also benefit from a direct-fit layout because it keeps the repair tied to the original exhaust path. The Roadwarrior C0185-ID helps the Navistar MaxxForce system regain proper catalyst function without fabrication.