2013 Mack CXU612, Truck Tractor, Vehicle ECMs, Fits to: Mack CXU612, (Used) 2013 Mack CXU612, AFTERTREATMENT CONTROL MODULE (ACM)- Part Number: 21063597, Serial Number: 12170478, 1 Rectangular Plug with 62 Pins, 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 2013, VIN 1M1AW01X7DM005547, Part# 21063597 1M1AW01X7DM005547