The Caterpillar 120B is a motor grader engineered for road construction and maintenance applications. Powered by a 638 cubic inch displacement engine, it delivers 125 horsepower (93 kilowatts) of maximum and net power in gear 5-6, providing reliable performance for grading operations. The machine features a 15.9-gallon fuel capacity, supporting extended operational periods with efficient fuel management. With a maximum operational weight of 26,510.6 pounds, the 120B offers substantial traction and stability necessary for heavy-duty grading tasks. The 13x24 8-ply tire configuration ensures adequate ground contact and durability across varied terrain conditions. Operating at a standard length of 26 feet, this grader is designed for optimal maneuverability on job sites while maintaining the blade control essential for precision grading work. The 120B represents Caterpillar's commitment to delivering dependable equipment for contractors and municipal maintenance operations requiring consistent, high-quality road surface preparation and maintenance capabilities.