John Deere 644K HYBRID Wheel Loader
 Wheel Loader // John Deere
                                John Deere 644K HYBRID Bucket
                  | Breakout Force: | 33903 lbs (15,378 kg) | 
John Deere 644K HYBRID Dimensions
                  | Height - Top of Cab: | 11.3 ft (3 m) | 
| Hinge Pin - Max Height: | 13.6 ft (4 m) | 
| Length with Bucket on Ground: | 27.3 ft (8 m) | 
| Reach at Max Lift and Dump: | 5.3 ft (2 m) | 
| Wheelbase: | 10.7 ft (3 m) | 
| Width Over Tires: | 9.5 ft (3 m) | 
John Deere 644K HYBRID Engine
                  | Displacement: | 415 cu in (0 m) | 
| Engine Model: | PowerTech PSX 6068 | 
| Net Power: | 229 hp (171 kw) | 
| Torque Rise: | 0.19 | 
John Deere 644K HYBRID Operating Specifications
                  | Front Axle/Diff Fluid Capacity: | 5.9 gal (22 l) | 
| Fuel Capacity: | 104.9 gal (397 l) | 
| Operating Weight: | 40435 lbs (18,341 kg) | 
| Rated Bucket Capacity: | 4.25 cu yds (3 m) | 
| Rear Axle/Diff Fluid Capacity: | 5.9 gal (22 l) | 
