2018 Mack Other, Truck Tractor, Transmission Assys, Fits to: Mack CXU612, ( Used ) 2017 MACK ( AT ) TRANSMISSION ASSEMBLY- Model: ATO2612F Serial Number: 0710833535 For more information about this item, give us a call. We ship Worldwide! ( CRG HEAVY TRUCK PARTS ) 929 W PULASKI HWY, ELKTON, MD 21921, Serial# 0710833535, Casting# 0710833535, Truck Year 2018 1M1AW01Y3JM010832