2006 Allison 4500RDS, Truck Delivery, Transmission Assys, Fits to: Mack MR690S, (Used) 2005 Allison, TRANSMISSION ASSEMBLY- Model: 4500RDS, Serial Number: 6610163749, Part Number: E009960, Engine: Mack E7, 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# 6610163749, Casting# 6610163749, Truck Year 2006 1M2K189C96M028295