2018 Allison 2100RDS, Truck Delivery, Transmission Assys, Fits to: Freightliner M2 106, (Used) 2017 Allison, TRANSMISSION ASSEMBLY- Model: 2100RDS, Serial Number: 6311519032, Engine: Cummins ISB, 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# 6311519032, Casting# 6311519032, Truck Year 2018 3ALACWFC3JDJM0685