2012 Western Star 4900SA, Truck Tractor, Rear Leaf, Fits to: Western Star 4900 SA, 2012 Western Star 4900 SB. Rear Leaf, 1- leaf 3 . Driver & Passenger side. For more information about this item call. We ship worldwide., Truck Year 2012, VIN 5KJJALDV4CPBR6762, Engine Make Detroit 5KJJALDV4CPBR6762