2019 Meritor/Rockwell MS1714X, Truck Delivery, Axles, Complete Rears, Fits to: International DuraStar 4300, (Used) 2019 International DuraStar 4300, COMPLETE REAR AXLE- Make: Meritor, Model: MS1714X3DFLNN501 557, Ratio: 557, Serial Number: DRA18281604, Part Number: B31C21DB, Hub Bolts: 10, Brake Type: Drum For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Ratio 557, Serial# B31c21DB, Casting# B31c21DB 3HAMMMMLXKL386140