Get the Direct-Fit Transmission Coolers & Lines that will upgrade and fix the transmission cooling in your 2017-2022 Ford 6.7L Powerstroke. There are performance thermal bypass valves for some transmission coolers that can take the place of the troublesome factory thermal bypass valve. Get OEM replacement cooler lines or performance braided hoses with billet -AN fittings for your vehicle. Get increased cooling efficiency with an aftermarket transmission cooler that has a greater fluid capacity and core volume. There are many high-quality manufacturers accessible, including Dorman, BD-Power, Mishimoto, and others.