Keeping your big, bad 6.7L Powerstroke's transmission temperatures down is absolutely key in order to preserve your Super Duty's longevity and maximize its towing and hauling performance. Aftermarket transmission coolers for the 2011-2016 F250 & F350 6.7Ls represent one of the most effective ways of getting your Super Duty truck's transmission temperatures down no matter what you're doing with your truck. Ford Super Duty Fitments: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ford F250 & F350 6.7L Submodel Fitments: FX4, King Ranch, Platinum, Lariat, XLT, XL Some Exceptions apply, please see individual product pages for specific fitments.