The Caterpillar 966D is a wheel loader designed for material handling, stockpiling, loading trucks, and general earthmoving applications. Part of Caterpillar's 966 series, the 966D is a mid-size loader commonly used in construction, quarry, aggregate, and industrial sites. It features a front-mounted bucket, articulated steering, and a diesel powertrain suited for repetitive loading cycles and site transport. The 966D is known for its serviceability, operator visibility, and compatibility with a range of attachments and bucket configurations. As a used machine, condition, hours, and maintenance history are key factors affecting performance, resale value, and operating cost.