This engine air intake heater relay is designed to match the fit and function of the original relay 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. [Dodge Ram 2500: 2008, 2009, 2010] - [Dodge Ram 3500: 2008, 2009, 2010] - [Dodge Ram 4500: 2008, 2009, 2010] - [Dodge Ram 5500: 2008, 2009, 2010] - [Ram 2500: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018] - [Ram 3500: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018] - [Ram 4500: 2011, 2012, 2013, 2014, 2015, 2016, 2017] - [Ram 5500: 2011, 2012, 2013, 2014, 2015, 2016, 2017]