Volvo DOC Diesel Oxidation Catalyst | For Volvo/Mack D13 Engines |28064129, 85001355, 20864129, 21850645

OEM Replacement for Part #: 21850645, 85001355, 20864129, 28064129 This Diesel Oxidation Catalyst is a direct fit replacement that provides equal or greater performance to OEM parts without the added cost of core charges. ROADWARRIOR parts include all necessary ports and attachments for sensors and are designed to operate in the exact same capacity as the OEM part. This Diesel Oxidation Catalyst is a new (not re-manufactured or re-conditioned) filter that includes complimentary gaskets. The DOC is backed with a one-year unlimited mileage warranty. Currently not for sale or installation in California.