The Caterpillar 988G is a large wheel loader engineered for high production in demanding applications. It features a robust box-section frame and articulated steering with a 43° articulation angle, providing excellent maneuverability. The loader is powered by a Caterpillar 3456 EUI diesel engine, delivering 475 hp (354 kW) net power and 520 hp (388 kW) gross power, with a displacement of 964.2 cu in (15.8 L). The engine is paired with a powershift planetary transmission, offering four forward and three reverse gears, with a maximum forward speed of 35.4 mph (56 km/h) and reverse speed of 23.5 mph (37 km/h). The hydraulic system enables a breakout force of up to 123,300 lbs (55,929 kg), with a bucket capacity ranging from 8.3 cu yds (6 m³) heaped to 10.8 cu yds (8 m³) struck, and a maximum bucket capacity of 9.2 cu yds (7 m³). The loader has a hinge pin height at full lift of 19.2 ft (6 m), a wheelbase of 15 ft (5 m), and an overall length of 41.6 ft (13 m). Standard service capacities include a 179.4 gal (678 L) fuel tank, 124.2 gal (469 L) hydraulic system, and 27.3 gal (102 L) cooling system. The 988G is equipped with fixed front and trunnion rear axles, 22.4 in (56 cm) single-wheel rise and fall, and a 13° oscillation angle. With a minimum turning radius over the bucket of 341.3 in (866 cm), the 988G delivers reliable performance and durability in heavy-duty environments.