The cab on the 644 G was designed to provide different levels of comfort to operators, depending on the machine application. It is also set up to ensure that operation of the machine is straightforward with easy-to-access machine settings and features.
The 644 G is backed by John Deere’s world-class dealer network that provides warranty support and maintenance and has the parts on the shelf needed to allow maximum uptime. Attributes related to servicing and supporting the 644 G are no different than those experienced today on all other pieces of John Deere equipment.
Built on over 50 years of experience producing and supporting wheel loaders, the 644 G features a high commonality of components found in other John loaders that are designed and tested to meet John Deere standards including the engine, transmission, and axles.
The 644 G controls were designed with operators of all skill sets in mind. The simple setup and functionality mean you can start putting the machine to work quicker and easier.
|Specs & Compare|
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Mid-Size Wheel Loader
|Engine Manufacturer||John Deere|
|Engine Model||PowerTech PVS 6068H|
|Emission Rating||EPA Tier 4 / EU Stage V|
|Displacement, ltr (Inches³)||6.8 (414)|
|Rated Speed, rpm||1800|
|Engine Output - Net, kW (hp)||169 (227)|
|Torque, Nm (lbf / ft)||981 (724)|
|Front Differential Type||Open|
|Rear Differential Type||Open|
|Tire size - Standard||23.5 R25|
|Service Brake - Type||Wet Disc|
|Service Brake - Actuation||Hydraulic|
|Parking Brake - Type||Wet Multi Disc|
|Height - Over Cab, mm (ft/in)||3460 (11 ft 4 in)|
|Wheelbase, mm (ft/in)||3260 (10 ft 8 in)|
|Ground clearance, mm (inches)||422 (16.6)|
|Width Over tires - Std, mm (ft/in)||2765 (9 ft )|
|Height - Pivot Pin, mm (ft/in)||4130 (13 ft 7 in)|
|Reach - At 2130mm 45° Dump, mm (ft/in)||1630 (5 ft 4 in)|
|Fuel Tank, ltr (gallons (US))||300 (79.3)|
|Hydraulic Tank, ltr (gallons (US))||100 (26.4)|
|Heaped Capacity, m³ (yd³)||3.25 (4.25)|
|Breakout - Bucket, kgf (lbf)||14424 (31799)|
|Ride Control System||Optional|
|Pump Flow - 1, lt/min (gallons (US) / min)||330 (87)|
|System Pressure, bar (PSI)||231 (3350)|
|Operating Weight, kg (lbs)||17985 (39650)|
|Key Features||Best For||More Details|
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Features and specifications are based on published information at the time of publication. Features and specifications are subject to change without notice.