This HVAC heater control knob is designed to match the fit and function of the original control knob on specified vehicles, and is engineered for durability and reliable performance. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Kenworth T170: 2008] - [Kenworth T2000: 2003, 2004, 2005, 2006, 2007, 2008, 2009] - [Kenworth T270: 2008] - [Kenworth T300: 2003, 2004, 2005, 2006, 2007] - [Kenworth T370: 2008] - [Kenworth T600A: 2003, 2004, 2005, 2006] - [Kenworth T660: 2007, 2008, 2009] - [Kenworth T800: 2003, 2004, 2005, 2006, 2007, 2008, 2009] - [Kenworth W900: 2003, 2004, 2005, 2006, 2007, 2008, 2009]