The 2011-2016 Ford 6.7L Powerstroke is plagued with radiator and cooling issues, the Mishimoto Aluminum Secondary Radiator works to increase durability & reliability in your cooling system. The 6.7L Powerstroke comes with 2 separate cooling systems, this radiator is your secondary which works to maintain ideal temperatures for the transmission cooler, egr cooler, fuel cooler and the liquid to air charge cooler.