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  Wheel Loaders

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John Deere 444K Specifications

The John Deere 444K wheel loader driveline system components: 276 cu.in (4.5L) John Deere PowerTech E 4045H 4-cylinder direct injection turbocharged diesel engine with a rated power of 124 hp (92 kW), and 4x3 powershift transmission with torque converter. The hydraulic system has a pump with a rated capacity of 23.5 gal/min (80 l/min). The John Deere 444K is equipped with a power steering system, hydraulic wet multi-disc brakes, and 17.5R25 tires. The wheel loader has a maximum lift height of 141.7" (3600 mm) and breakout force of 17550 lbs (7960 kg). The rated operating capacity is 8200 lbs (3720 kg), and tipping load is 16400 lbs (7440 kg).

Engine Model .................... John Deere PowerTech E 4045H
Engine Type .................... Vertical in-line 4-cylinder turbocharged diesel
Number of Cylinders .................... Four
Displacement, cu.in (L) .................... 276 (4.5)
Cylinder Bore, in (mm) .................... 4.17 (106.0)
Piston Stroke, in (mm) .................... 5.00 (127.0)
Aspiration Type.................... Turbocharged
Rated Engine Power, hp (kW) .................... 124.0 (92.0)
Rated Engine Speed, rpm .................... 2100
Maximum Torque, Nm (lb-ft) .................... 507 (374)
Torque Speed, rpm .................... 1000
Slow Idle Speed, rpm .................... 900
Fast Idle Speed, rpm .................... 2500
Compression Ratio .................... 17:1
Firing Order .................... 1-3-4-2
Combustion System .................... Direct injection
Fuel System .................... High-pressure common rail
Air Cleaner Type .................... Dry dual element
Lubrication System .................... Pressure with spin-on filter and cooler
Cooling System .................... Liquid-cooled
Emission Level .................... Final Tier 3
Fuel Tank Capacity, gal (L) .................... 58.0 (220.0)
Oil Capacity, qts (L) .................... 19.4 (18.5)
Coolant Capacity, qts (L) .................... 21.0 (20.0)
Electrical System Rating, Volts .................... 12
Charging System .................... Alternator
Alternator Rating, Amps .................... 80

Transmission Type .................... Countershaft-type powershift
Gearbox Type .................... 4F/3R
Number of Forward Gears .................... 4
Number of Reverse Gears .................... 3
Torque Converter Type .................... Single stage
Oil Capacity, qts (L) .................... 19.4 (18.5)
Maximum Forward Speed, mph (kph) .................... 22.4 (36.1)
Maximum Reverse Speed, mph (kph) .................... 15.0 (24.2)

Drive System Type .................... Four-wheel drive (4WD)
Steering Configuration .................... Articulated frame
Steering System .................... Hydrostatic power
Service Brakes Type .................... Hydraulic wet multi-disc
Front Tire Size .................... 17.5R25
Rear Tire Size .................... 17.5R25

Hydraulic System Type .................... Closed center
Hydraulic Pump Type .................... Axial-piston
Pump Flow, gpm (Lpm) .................... 36.9 (140.0)
System Pressure, psi (Bar) .................... 3600 (248)
Hydraulic System Capacity, gal (L) .................... 24.3 (92.0)

Rated Operating Capacity (Straight, Std Lift), lbs (kg) .................... 9630 (4370)
Rated Operating Capacity (Full Turn, Std Lift), lbs (kg) .................... 8200 (3720)
Rated Operating Capacity (Straight, High Lift), lbs (kg) .................... 8320 (3735)
Rated Operating Capacity (Full Turn, High Lift), lbs (kg) .................... 7055 (3200)
Tipping Load (Straight, Std Lift), lbs (kg) .................... 19260 (8740)
Tipping Load (Full Turn, Std Lift), lbs (kg) .................... 16400 (7440)
Tipping Load (Straight, High Lift), lbs (kg) .................... 16640 (7550)
Tipping Load (Full Turn, High Lift), lbs (kg) .................... 14110 (6400)
Breakout Force (Std Lift), lbs (kg) .................... 17550 (7960)
Breakout Force (High Lift), lbs (kg) .................... 16195 (7345)

Maximum Lift Height To Hinge Pin (Std Lift), in (mm) .................... 141.7 (3600)
Maximum Lift Height To Hinge Pin (High Lift), in (mm) .................... 157.1 (3990)
Height To Top Of Cab, in (mm) .................... 124.8 (3170)
Length With Bucket On Ground (Std Lift), in (mm) .................... 270.1 (6860)
Length With Bucket On Ground (High Lift), in (mm) .................... 283.5 (7200)
Width (Tread Center), in (mm) .................... 74.8 (1900)
Width (Over Tires), in (mm) .................... 95.1 (2415)
Wheel Base, in (mm) .................... 108.7 (2760)
Ground Clearance, in (mm) .................... 15.6 (395)
Articulation Angle, deg .................... 40
Bucket Width, in (mm) .................... 100 (2540)
Bucket Capacity, cu.ft (m3) .................... 67.1 (1.90)
Digging Depth (Std Lift), in (mm) .................... 4.1 (105)
Digging Depth (High Lift), in (mm) .................... 4.1 (105)
Rollback Angle At Ground, deg .................... 39
Rollback Angle At Full Height (Std Lift), deg .................... 55
Rollback Angle At Full Height (High Lift), deg .................... 50
Dump Angle At Full Height (Std Lift), deg .................... 50
Dump Angle At Full Height (High Lift), deg .................... 45
Clearance With Bucket Dumped (Std Lift), in (mm) .................... 105.1 (2670)
Clearance With Bucket Dumped (High Lift), in (mm) .................... 119.3 (3030)
Reach At Full Height (Std Lift), in (mm) .................... 40.9 (1040)
Reach At Full Height (High Lift), in (mm) .................... 40.9 (1040)
Turning Radius (w/Bucket, Std Lift), in (mm) .................... 217.9 (5535)
Turning Radius (w/Bucket, High Lift), in (mm) .................... 224.2 (5695)
Operating Weight (Std Lift), lbs (kg) .................... 25020 (11350)
Operating Weight (High Lift), lbs (kg) .................... 25360 (11540)

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