This transmission package is rated for over 1200 ponies and has been proven time and again to do so. The crew has been building heavy duty transmissions since the beginning, and the 6R140 is their specialty. Driven Diesel Transmission Cooler Kit 17-19 6.7L Ford Powerstroke DD-67L-1719-TCOOL 10.00 Driven Diesel DD-67L-1719-TCOOL
Ford opted to use two cooling systems for the 6.7 Power Stroke. The primary cooling system is for the engine vitals (heads, block, etc). The other cooling system is to cool the EGR, fuel, transmission fluid, and charge air cooler (air to water on the 6.7 instead of air to air).