2001-2004 GM 2500HD/3500HD 6.6L LB7 Duramax Torque Converters

The stock converter on your 2001-2004 GM 6.6L Duramax works fine for everyday driving, but it struggles to keep up with the increased horsepower and torque from performance upgrades. If your Duramax is pushing serious power, it’s time to upgrade to one of the premium torque converters available at Alligator Performance! These upgraded converters are built to handle significantly higher levels of horsepower and torque, ensuring consistent transmission performance and reliability for your GM truck in any situation. Pair your torque converter upgrade with our full line-up of Transmission Upgrades and Engine Upgrades! GM Duramax Fitments: 2001, 2002, 2003, 2004 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.