Ensuring that your 2013-2018 Ram 6.7L Cummins engine is operating at a cool and nominal temperature ensures good performance. With a lot of power coming out of that 6.7L you will surely need to grab some efficient cooling upgrades to ensure performance longevity. Take your pick from any number of these featured cooling upgrades for the Ram 2500/3500s! From A/C lines to improved aftermarket coolant tanks, we offer a wide variety of cooling upgrade options to make sure their diesel beast can withstand any and all road obstacles. If you're going to push your engine, be sure that it's getting the cooling it needs with our featured cooling upgrade kits! Ram Cummins Fitments: 2013, 2014, 2015, 2016, 2017, 2018 Ram 6.7L Cummins.Submodel Fitments: Tradesman, Laramie, Laramie Longhorn, Big Horn, Limited, Lone Star, Power Wagon.Some exceptions apply, please see individual product pages for specific fitments.