2007 Mack Other, Truck Tractor, Transmission Assys, Fits to: Mack CHN613, (USED) 2007 Mack - TRANSMISSON ASSEMBLY - Model: TBD. Serial Number: TBD. Engine: Mack E7. 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# TBD, Casting# TBD, Truck Year 2007 1M1AJ06Y27N011366