This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Kenworth T600: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015] - [Kenworth T660: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017] - [Kenworth T800: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017] - [Kenworth W900: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017] - [Peterbilt 348: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018] - [Peterbilt 365: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018] - [Peterbilt 367: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018] - [Peterbilt 377: 2008, 2009, 2010, 2011, 2012, 2013, 2014] - [Peterbilt 382: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017] - [Peterbilt 384: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016] - [Peterbilt 385: 2008, 2009, 2010, 2011, 2012, 2013, 2014] - [Peterbilt 386: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016] - [Peterbilt 388: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015] - [Peterbilt 389: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017]