2020-2024 Silverado & Sierra 2500 & 3500 6.6L Duramax L5P Torque Converters

The stock torque converter in your 2020-2024 Silverado or Sierra Duramax L5P may do its job just fine at stock power levels, but if you're taking your awesome L5P to the next level of performance, the factory unit just can't hack it. Tier One's selection of performance torque converters for Duramax L5P trucks are designed to handle all the horsepower and torque your big diesel can spit out. We eliminate the risk of warping, cracking, or burn-up, even if you are towing extremely heavy loads or running aggressive tunes. From improved towing converters to billet multi-disc units for competition, we help you put that power to the pavement. If your torque converter has already failed and sent debris through the rest of the system, a simple replacement might not be enough, and you may need to swap the whole unit with one of our 2020-2024 Duramax L5P Complete Transmissions. A torque converter working hard under a heavy load generates massive amounts of heat, so keep that heat from cooking your fluid and ruining your new converter with one of our 2020-2024 Duramax L5P Transmission Coolers. To get the most out of your new converter, your transmission needs to apply the correct fluid pressure, so ensure your lock-up is firm and reliable by upgrading to one of our 2020-2025 Duramax 10L1000 Valve Bodies. While you have the transmission disconnected to install the converter, it's the perfect time to upgrade other maintenance items, so see what else you should swap in our 2020-2024 Duramax L5P Transmission Parts.