The John Deere 444K Powerllel w/Q Coupler wheel loader is a robust mid-size machine engineered for demanding material handling tasks across diverse terrains. Powered by a turbocharged, charge air cooled John Deere E 4045H Tier III certified engine, it delivers 128 hp (95 kW) at 2,100 rpm and features a 4-cylinder, 276 cu in (4.5 L) displacement. The loader’s Powerllel linkage system ensures outstanding breakout force of 13,352 lbs (6,056 kg) throughout the full bucket and angle range, while the Worksite Pro™ Q coupler enables rapid, push-button attachment changes for enhanced versatility. The bucket offers a heaped capacity of 2.5 cu yds (2 m³) and a struck capacity of 2.1 cu yds (2 m³), with an 8.4 ft (2.55 m) width. Key dimensions include a 23.5 ft (7.16 m) length with bucket on ground, 8 ft (2.44 m) width over tires, 10.5 ft (3.2 m) height to top of cab, and a 9.1 ft (2.77 m) wheelbase. The hydraulic system features a variable displacement axial piston pump with a flow capacity of 37 gal/min (140 L/min), a relief valve setting of 3,600 psi, and cycle times of 5.9 sec (raise), 1.9 sec (lower), and 1.1 sec (dump). The loader operates at 24 V, with a 26,618.7 lbs (12,074 kg) operating weight and a 15.6 ft (4.75 m) turning radius. Transmission is a 4-speed forward, 3-speed reverse countershaft powershift, with forward speeds up to 22.4 mph (36 km/h) and reverse up to 15.8 mph (25.4 km/h). Fluid capacities include 64 gal (242 L) fuel, 24.1 gal (91 L) hydraulic, and 5.1 gal (19 L) cooling system.