Heavy loads are no issue for your 2003-2007 Ford 6.0L Powerstroke when equipped with the Mishimoto MMTC-F2D-03SL Transmission Cooler. Complement your cooling system with the Mishimoto Transmission Cooler. The stock 6.0 Powerstroke transmission cooler does an ample job of keeping temperatures down, but as the loads increase, so do transmission temps. The 37-row Mishimoto stacked plate cooler provides a larger surface area over both of the stock coolers. Core volume is increased by a whopping 21%, and fluid capacity is increased by 1/3 qt.