The Caterpillar 963 is a crawler loader designed for material handling, site preparation, stockpiling, and general earthmoving. Built on a tracked undercarriage, it combines loader capability with the traction and stability of a crawler machine, making it suitable for soft ground and uneven terrain. The 963 is commonly used in construction, aggregate, waste handling, and land clearing applications. Caterpillar has produced multiple 963 variants over time, with differences in engine, operating weight, hydraulic system, and cab configuration. As a crawler loader, the Caterpillar 963 is valued for pushing, loading, grading, and loading trucks in demanding jobsite conditions.