View 6 Photos View 0 Videos Mack AC Diesel ECM Part # 12MS532M Engine Computer Contact for price (GOOD USED) Mack AC ECM Part # 12MS532M For Sale, 041101 1039S04914, Stock # 2256 Tested Inspected! All ourPARTSareTESTEDand ShipPRIORITY MAIL!OVERNIGHT SHIPPINGoptions are available!... ConditionUsedFits To EquipmentDiesel EngineFits To Make(s)MackFits To Model(s)ACPart Number12MS532MStock Number2256 MLS Number10237102CategoryEngine Control Modules (ECM) Last Updated8/21/2026 LocationOpa Locka, FL, US Sold ByCA Truck Parts Inc. (305) 688-___ SHOWNUMBERCall Seller Email Seller Save More Info