This air door actuator directly replaces the original actuator on specific vehicle years, makes, models, configurations and positions to restore proper HVAC operation. Please note that many vehicles have several different air door actuators, which are designed for specific positions and functions in the vehicle. To ensure you have what you need, carefully review the application notes for this part to verify it matches the position and function of the actuator you need to replace. In some online ordering systems, you may need to enter your vehicle information first to see the application notes for your vehicle. If you don't know which actuator position you need to replace, consult a qualified service technician. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chevrolet C8500 Kodiak: 2003, 2004, 2005, 2006, 2007, 2008, 2009] - [Chevrolet C8500: 2003, 2004, 2005, 2006, 2007, 2008, 2009] - [Chevrolet Express 1500: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014] - [Chevrolet Express 2500: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [Chevrolet Express 3500: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [Chevrolet Express 4500: 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018] - [Chevrolet Express Cargo: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [Chevrolet Express Pasajeros: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [GMC C8500 Topkick: 2003, 2004, 2005, 2006, 2007, 2008, 2009] - [GMC C8500: 2003, 2004, 2005, 2006, 2007, 2008, 2009] - [GMC Savana 1500: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014] - [GMC Savana 2500: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [GMC Savana 3500: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [GMC Savana 4500: 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2018]