5 0 Mack 12MS526M Engine Control Module (ECM) Part # 12MS526M $600 USD (GOOD USED) Mack ECM Part# 12MS526M, 12V, ECM Bosch Part # 0281020006, Stock # 2581 Tested Inspected! All ourPARTSareTESTEDand ShipPRIORITY MAIL!OVERNIGHT SHIPPINGoptions are available!... ConditionUsedFits To Make(s)MackFits To Model(s)12MS526MPart Number12MS526MStock Number2581 MLS Number10623396CategoryEngine Control Modules (ECM) Last Updated1/15/2021 LocationOpa Locka, FL, US Sold ByCA Truck Parts Inc. (305) 688-___ SHOWNUMBERCall Seller Email Seller Save More Info