The O-rings in this radiator coolant hose O-ring kit are designed to match the fit and function of original equipment O-rings on specified vehicles and are engineered to help securely seal hose connections when an existing O-ring has failed. This part is ompatible with the following vehicles. Before purchasing, enter your vehicle specifications in the Amazon Garage to confirm correct fitment. [Ford F-250 Super Duty: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018] - [Ford F-350 Super Duty: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018] - [Ford F-450 Super Duty: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018] - [Ford F-550 Super Duty: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018]