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This Redline Emissions Products DOC Catalyst Replacement (RED 58823) for Mack / Volvo - MP7 is a direct replacement for the OEM number(s) listed below. OEM: 20863840, 85001356, 85000777New, no core required.
Uses (2) REDLINE G22007 gaskets (included)
Uses (2) REDLINE VB2003 clamps (not included)
Comes with a 2-Year, Unlimited Mile Warranty.