2011 Allison 1000HS, Truck Delivery, Transmission Assys, Fits to: Workhorse Custom Chassis W62, (Used) 2010 Allison (AT), TRANSMISSION ASSEMBLY- ( REMANUFACTURED WELLER ) Model: 1000HS, Serial Number: 1323474, Part Number: E018571, Engine: GMC/Chevy 6.0L Gasoline, Reference images for condition, 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# 1323474, Casting# 1323474, Truck Year 2011 5b4lfg2exb3444894