6R140 Transmission Stage 1

Stage 1 6R140 Transmission for 2011-2016 Ford 6.7 Powerstroke

For Powerstroke owners with stock or mildly tuned trucks, Randy’s Stage 1 6R140 is the ideal upgrade when a stock build just won’t cut it. While the factory 6R140 is already a solid transmission, even it can benefit from a little extra reinforcement to ensure long-term reliability. 

This build is perfect for those who want more strength and durability than a stock rebuild, providing peace of mind without overbuilding for high-horsepower setups. (Note: Due to the increased horsepower in 2017-2019 models, they require the Stage 2 build as a minimum )

The Stage 1 6R140 offers the perfect balance for those looking for more than stock but not chasing big power—making it a great fit for everyday drivers or weekend warriors.

This build includes:

 • New O.E. Torque Converter – Ensures smooth power delivery and improved durability over stock.
 • New O.E. Valve Body – Restores precise, reliable shifting to keep your truck performing at its best.
 • Complete Rebuild Kit with Pistons – A comprehensive kit that revitalizes your transmission, replacing all critical wear components for like-new reliability.

Why Choose Randy’s?

At Randy’s Transmissions, we are dedicated to providing top-tier performance and reliability for every build. Our transmissions are meticulously engineered and tested to ensure they exceed your expectations. We use only the highest quality components, perform rigorous in-house testing, and offer unmatched support and expertise. With our products, you get American-made excellence backed by a commitment to durability and performance. Whether for heavy hauling or daily driving, our transmissions are designed to keep you moving with confidence.

Backed by Real-World Testing and Development

At Randy’s, we pride ourselves on delivering products that are rigorously tested and developed to meet the highest standards of performance and reliability. Since our founding in 2008, we’ve continuously refined and tested our transmissions under real-world conditions to ensure they can handle the toughest challenges. Our commitment to innovation and thorough testing means that every transmission we offer has been proven to perform, whether you’re towing heavy loads, racing on the track, or navigating rugged terrain. With over a decade of expertise and a track record of excellence, you can trust that our transmissions are built to exceed your expectations and provide dependable performance for years to come.

Buy Now, Pay Later

We know that upgrading your transmission is a big investment and paying all at once can be tough. That’s why we’ve teamed up with Affirm to make it easier for you. With our financing options, you can enjoy the benefits of a top-quality transmission without the stress of a hefty upfront payment. Available exclusively online, just choose Affirm at checkout and spread your payments out over time. Get the performance you need today, and pay at a pace that fits your budget.

2-Year / Unlimited Mile Warranty

At Randy’s, we back our products with a robust 2-year, unlimited mile warranty because we believe in the quality and reliability of our transmissions. Our commitment goes beyond just selling a product; it’s about providing peace of mind for the long haul. If you encounter any issues during this period, we’ll be there to support you, ensuring your transmission performs at its best. This warranty reflects our dedication to your satisfaction and confidence in our craftsmanship. Rest assured, with Randy’s, you’re covered.

Refresh Program

At Randy’s, we believe in long-term relationships, not just one-time transactions. That’s why our Refresh Program is here to support you even after your warranty expires. When your transmission needs a little TLC, we’ll give it a thorough rebuild at a fraction of the cost of a new unit. It’s our way of showing our commitment to your vehicle’s performance and your satisfaction. Please remember, this program is available only to the original owner and is non-transferable. With Randy’s, you’re not just buying a transmission; you’re investing in lasting peace of mind and continued excellence on the road.