4 0 2000 Mack Engine Control Module (ECM) Contact for price (Used) 2000 Mack, ENGINE ECM- Part Number: 21900553, Serial Number: T13244414, 2 Rectangular Plugs with 62 Pins, Reference images for condition. For more information about this item, give... ConditionUsedFits To Make(s)MackWill Fit Year(s)2000Part Number21900553Stock NumberP-84718 MLS Number13012397CategoryEngine Control Modules (ECM) Last Updated7/27/2024 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info