2016 Allison 2500HS, Truck Delivery, Transmission Assys, Fits to: Peterbilt 337, (Used) 2015 Allison (AT), TRANSMISSION ASSEMBLY- Model: 2500HS, Serial Number: 6311389459, Engine: PACCAR PX-7, 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# 6311389459, Casting# 6311389459, Truck Year 2016 2NP2HM7X4GM351673
