; HomeHeavy Duty Truck PartsEngines & Engine PartsEngine AssysDetroitSeries 60 12.7L DDEC IVUsed Detroit Series 60 12.7L DDEC IV Engine Assy Used Detroit Series 60 12.7L DDEC IV Engine Assy Unfortunately this part is temporarily unavailable. View other Detroit Series 60 12.7L DDEC IV Engine Assys