Transmission Coolers & Lines

Get the Direct-Fit Transmission Coolers & Lines that can upgrade or fix the transmission cooling in your 2017-2019 Chevy/GMC 6.6L L5P Duramax. 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. Most aftermarket transmission cooler give you greater cooling efficiency by an increase in core volume and fluid capacity. There are many high-quality manufacturers accessible, including Dorman, BD-Power, Mishimoto, and others.