The Cat^® AD63 Underground Truck is designed for high production, lower costs and increased efficiency. It’s built tough to stand up to the harsh conditions of your site, and features a number of improvements over its predecessor, including a 5% greater payload and more torque. The world-class cab keeps operators safe and comfortable all shift long, and new enhancements help ensure the safety of everyone working in, on or around the machine. It’s powered by a Cat C27 engine that meets EU Stage V Emissions Standards for cleaner performance, as well as reduced ventilation costs. And its rugged construction and simplified maintenance make for longer life and lower operating costs, so you can get the most out of your investment.