This HVAC heater water shut-off valve actuator is designed to match the appearance and function of the original actuator on specified applications, and is engineered for reliable performance and durability. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Kenworth T600A: 2005, 2006, 2007] - [Kenworth T800: 2005, 2006, 2007, 2008, 2009, 2010, 2011] - [Kenworth W900: 2005, 2006, 2007, 2008, 2009, 2010, 2011]