2011 Mack CXU612, Truck Tractor, Diesel Particulate Filter (DPF), Fits to: Mack CXU612, (Used) 2011 Mack CXU612, DIESEL PARTICULATE FILTER- (Inlet Facing Front, Outlet Facing Upward) FILTER- Part Number: 21756506, Serial Number: 12400010148417, OUTLET- Part Number: 21311953, Serial Number: 12400001251497, Engine: Mack MP7, Reference images for condition. For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921, Truck Year 2011, VIN 1M1AW01YXBM003510, 1M1AW01YXBM003510