1999-2000 Sterling Truck AT9522 12.0L 6 Cyl. 1999-2000 Sterling Truck AT9522 12.7L 6 Cyl Turbo/Aftercooled DIESEL. 1999 Sterling Truck AT9522 11.1L 6 Cyl Turbo/Aftercooled DIESEL. Notes: Fuel Water Separator Filter -- High Efficiency; For Davco Fuel System.
