2006 CHELSEA Other, Truck Delivery, PTOs, Fits to: Mack MR690S, (Used) 2006 Allison, PTOs- Make: Chelsea, Model: 440XSAHX-A6XK Part Number: CI-P-497, Trans Model: 4500RDS 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, Transmission Make Allison, Transmission Model 4500RDS, Part# CI-P-497 1M2K189C96M028295