They physically bolt up to a newer truck, however, they're valved for the heavier 2014 F150s, and it's tough to say what kind of ride quality you'd get out of a 2018 F150. Your better bet would be to get an exchange for the correct set of Bilsteins for a 2018 F150. If your 2014 Bilsteins are unopened and in their original packaging, we can likely work something out. Give us a call directly at 623-434-5277.