Duramax Diesel is a brand of diesel engines developed by General Motors in collaboration with Isuzu. Introduced in 2001, these engines are known for their durability, efficiency, and high torque output, making them popular in heavy-duty trucks and commercial vehicles. The Duramax engine lineup includes various models, with displacements ranging from 6.6 to 8.1 liters. These engines are designed to meet stringent emissions standards while providing reliable performance for towing and hauling. They are commonly found in Chevrolet and GMC trucks, contributing to their reputation for strength and capability.