MMTC-F2D-99SL - Mishimoto's new 37-row stacked-plate transmission cooler provides a larger surface area increases core volume by 265% compared to the stock 9-row transmission cooler in 1999-2003 Ford Powerstroke 7.3L diesel trucks. Designed as a direct, drop-in replacement, this unit increases fluid capacity by 1qt and has a proven 10┬░C temperature drop.