2012 Western Star 4900SA, Truck Tractor, Back Windows, Fits to: Western Star 4900 SA, 2012 Western Star 4900 SA. Tinted sleeper window,passenger side, 37 1/2 X 25 . For more information about this item call. We ship worldwide., Truck Year 2012, VIN 5KJJALDV4CPBR6762, Part# 43R-001807 5KJJALDV4CPBR6762