2006-2007 Silverado & Sierra 2500 & 3500 Duramax LBZ Torque Converters

The Duramax LBZ is well known for its ability to make astounding levels of power, but that torque can easily overpower the stock converter, leading to shuddering and heat buildup. Tier One's performance torque converters for 2006-2007 Silverado & Sierra 2500 & 3500 Duramax LBZ trucks are designed to handle extreme horsepower and heavy towing applications without warping or burning up. We carry everything from uprated stock replacement torque converters for mildly modified trucks all the way to billet torque converters with multi-disc designs that ensure 100% lock-up during hard track launches or heavy pulls up a grade. 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 2006-2007 Duramax LBZ 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 2006-2007 Duramax LBZ 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 2006-2007 Duramax LBZ 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 2006-2007 Duramax LBZ Transmission Parts.