Our ECM's have had extensive electronic remanufacturing knowledge put into them to produce one of best remanufactured ECM out there. We offer completely remanufactured Cummins Celect and Celect plus ECM's, These are not 'repaired' ECM's that have had the one failed electrical/electronic component repaired or replaced leaving the rest of the high milage high time next to fail electrical parts in there.