View 3 Photos View 0 Videos Mack VARIOUS MACK MODELS Engine Control Module (ECM) Newly Listed $250 USD Good Used Mack Aftertreatment Control Module P/N 21870087P02 ConditionUsedFits To Make(s)MACKStock Number1062000 MLS Number14302248CategoryEngine Control Modules (ECM) Last Updated4/10/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info