2006 Allison 2400, , Transmission Assys, Fits to: Other Other, (USED) 2005 Allison (AT) , TRANSMISSON. S/N-9830000939 P/N-E004507 Model-2400 For more information about this item call. We ship Worldwide. 929 W Pulaski Hwy Elkton, MD 21921, Serial# 9830000939, Casting# 9830000939, Truck Year 2006