Overview
The John Deere Construction & Forestry John Deere 644D is a wheel loader listed in the Heavy Equipment Hub equipment database with structured specifications for comparison, research, and machine selection. Key specification points include engine power of 155 hp, operating weight of 29,320 lb, fuel capacity of 67.0 gal and hydraulic capacity of 25.1 gal. This model can be reviewed for loading, stockpile work, material handling, yard operations, and fleet comparison workflows. Use the full specifications table to compare the John Deere Construction & Forestry John Deere 644D against similar wheel loader models by power, weight, capacity, dimensions, speed, and other technical values.
Key Specifications
Operating Weight
29,320
lb
Net Power
155
hp
Gross Power
175
hp
Bucket Capacity - Heaped
3
yd3
Full Specifications
45 specs
Dimensions
Breakout Force
24,430 lb / 11,081 kg
Bucket Capacity - Heaped
3 yd³ / 2.29 m³
Bucket Capacity - Struck
2.52 yd³ / 1.93 m³
Bucket Width
8.73 ft / 2.66 m
Dump Clearance At Max Raise
9.75 ft / 2.97 m
Ground Clearance
1.69 ft / 0.52 m
Height to Top of Cab
10.50 ft / 3.20 m
Hinge Pin - Max Height
12.67 ft / 3.86 m
Length With Bucket On Ground
23.08 ft / 7.03 m
Reach At Max Lift And Dump
3.07 ft / 0.94 m
Wheelbase
9.59 ft / 2.92 m
Width Over Tires
8.55 ft / 2.61 m
Engine
Alternator Supplied Amperage
42 A
Cooling System Fluid Capacity
7.40 gal / 28.0 L
Displacement
466 cu in / 7.6 L
Engine Make
2240
Engine Model
6-466T
Engine Oil Fluid Capacity
5.10 gal / 19.3 L
Front Axle/Diff Fluid Capacity
6.10 gal / 23.1 L
Fuel Capacity
67 gal / 253.6 L
Gross Power
165 hp / 123.0 kW
Hydraulic System Fluid Capacity
25.10 gal / 95.0 L
Max Speed - Forward
27.30 mph / 43.9 km/h
Max Speed - Reverse
8.20 mph / 13.2 km/h
Max Torque
480 lb-ft / 651 Nm
Net Power
155 hp / 115.6 kW
Number of Cylinders
6
Number of Forward Gears
4
Number of Reverse Gears
2
Operating Voltage
12 V
Operating Weight
29,320 lb / 13,299 kg
Power Measured @
2,200 rpm
Rear Axle Oscillation
22 lb / 10 kg
Rear Axle/Diff Fluid Capacity
6.10 gal / 23.1 L
Static Tipping Weight
25,210 lb / 11,435 kg
Tire Size
20.50 in / 521 mm
Torque Measured @
1,400 rpm
Transmission Fluid Capacity
9.80 gal / 37.1 L
Turning Radius
16.50 ft / 5.03 m
Hydraulics
Dump Time
2 sec
Gross Power
175 hp / 130.5 kW
Lower Time
4.30 sec
Pump Flow Capacity
63 gal/min / 238.5 L/min
Raise Time
6.10 sec
Relief Valve Setting
2,625 psi / 181.0 bar
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Frequently Asked Questions
What is the operating weight of the John Deere Construction & Forestry John Deere 644D? +
The John Deere Construction & Forestry John Deere 644D has an operating weight of 29,320 lb (13,299 kg). This places it in a class suited for wheel loader applications where ground pressure and transport weight are key considerations.
How powerful is the John Deere Construction & Forestry John Deere 644D engine? +
The John Deere Construction & Forestry John Deere 644D produces 165 hp (123.0 kW) of engine power. This output is typical for its weight class and designed to handle demanding Wheel Loader work cycles efficiently.
How does the John Deere Construction & Forestry John Deere 644D compare to similar Wheel Loader models? +
You can compare the John Deere Construction & Forestry John Deere 644D side by side with any other model using the Heavy Equipment Hub compare tool. Key comparison points include engine power, operating weight, digging depth, hydraulic flow, and overall dimensions.