2003 Allison HD4500PRM, Front Loader, Automatic Shifter Assys, Fits to: Oshkosh S-SERIES, (Used) 2002 Allison (AT), AUTOMATIC SHIFTER- Model: WPB03, Serial Number: 0420208, Part Number: 29538022, Make: Allison, Type: Automatic, Transmission: HD4500PRM, 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# 0420208, Casting# 0420208, Truck Year 2003 10TFAWD293S077377