Whether you are looking to update a certain component of your transmission or just need a replacement, Next Gen Diesel has you covered. We offer a wide selection of 2001-05 Duramax Allison transmission parts. These parts are compatible with diesel transmissions found diesel Chevy and GMC trucks manufactured between 2001 and 2005. Our inventory includes converters, input and output shafts, clutch hubs, deep pans, and more. We expertly design and craft each aftermarket component that we offer from high-quality materials, ensuring durability and great performance for years to come. Check out our selection of 2001-2005 Duramax Allison transmission parts today!