2017-2019 F250 & F350 6.7L Powerstroke Complete Transmissions

The 6R140 transmission powering your 2017-2019 F250 or F350 is a stout unit, but it has specific internal weak points that inevitably lead to failure when you start adding power or towing heavy. Most notably, the factory friction weld on the input shaft is prone to breaking, and the planet bearings are a known failure point. Tier One's selection of built 2017-2019 Super Duty transmissions solves these issues permanently. We TIG weld the factory friction weld on the input shaft and weld the forward shaft to prevent breakage. We also remove the problematic planet bearing on all units to eliminate that failure risk entirely. On top of that, we increase clutch counts across the board for better holding power. As you move up to our higher stages, we include billet intermediate shafts, billet overdrive pistons, and race-ready billet torque converters. Whether you need a reliable daily driver or a 1000HP competition build, Tier One has the 6R140 for you. Even the best transmission build needs a reliable connection to the engine, so if you are piecing together your own build or need a specific stall speed, look at our 2017-2019 F250 & F350 6.7L Torque Converters. You've invested in a high-performance transmission, now you need to protect it from heat while towing by adding one of our 2017-2019 F250 & F350 6.7L Transmission Coolers. If you aren't ready for a complete transmission swap but want to fix shifting issues and leaks, a standalone valve body upgrade is a great middle-ground, so check out our 2017-2019 F250 & F350 6.7L Valve Bodies. From deep pans that increase oil capacity to billet shafts for custom rebuilds, we have the individual components to finish your project in our 2017-2019 F250 & F350 6.7L Transmission Parts.