2 0 Mack ETEC Engine Control Module (ECM) $500 USD Good used, cleaned and inspected Mack ETEC ECM. Part Number: 12MS523M. 30 Day Guarantee for swap or refund if not programmable. ECM's need to be programmed for your application. Quantity2ConditionUsedPart Number12MS523MStock NumberRyd 12MS523M MLS Number10205067CategoryEngine Control Modules (ECM) Last Updated5/22/2025 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
2 0 Mack ETEC Engine Control Module (ECM) $275 USD Good used, cleaned and inspected Mack ETEC ECM. Part Number: 12MS48M6. 30 Day Guarantee for swap or refund if not programmable. ECM's need to be programmed for your application. Quantity3ConditionUsedPart Number12MS48M6Stock NumberRyd 12MS48M6 MLS Number10205034CategoryEngine Control Modules (ECM) Last Updated5/22/2025 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
2 0 Mack ETEC Engine Control Module (ECM) $275 USD Good used, cleaned and inspected Mack ETEC ECM. Part Number: 12MS48M2. 30 Day Guarantee for swap or refund if not programmable. ECM's need to be programmed for your application. ConditionUsedPart Number12MS48M2Stock NumberRyd 12MS48M2 MLS Number13377282CategoryEngine Control Modules (ECM) Last Updated2/2/2025 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
2 0 Mack ETEC Engine Control Module (ECM) $350 USD Good used, cleaned and inspected Mack ETEC ECM. Part Number: 12MS518M. 30 Day Guarantee for swap or refund if not programmable. ECM's need to be programmed for your application. ConditionUsedPart Number12MS518MStock NumberRyd 12MS518M MLS Number10607306CategoryEngine Control Modules (ECM) Last Updated1/8/2025 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info