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John Deere 444J Specifications

The John Deere 444J wheel loader is powered by 276 cu.in (4.5L) John Deere PowerTech 4045H vertical 4-cylinder turbocharged liquid-cooled diesel engine with a rated power of 115 hp (82 kW) at 2200 rpm. The John Deere 444J is equipped with a 4x3 powershift transmission, power steering system, hydraulic wet multi-disc brakes, and 20.5R25 standard tires. The hydraulic system has a pump with fluid flow rate of 36.9 gpm (140 lpm). The wheel loader has a rated operating capacity of 7820 lbs (3545 kg) and tipping load of 15640 lbs (7090 kg). The max lift height is 141.5 inches (3595 mm) to hinge pin, and boom breakout force is 18100 lbs (8210 kg).

Engine Model .................... John Deere PowerTech 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) .................... 115.0 (82.0)
Maximum Engine Power, hp (kW) .................... 125.0 (90.0)
Rated Engine Speed, rpm .................... 2200
Maximum Torque, Nm (lb-ft) .................... 505 (375)
Torque Speed, rpm .................... 1400
Slow Idle Speed, rpm .................... 1000
Fast Idle Speed, rpm .................... 2525
Compression Ratio .................... 17:1
Firing Order .................... 1-3-4-2
Combustion System .................... Direct injection
Fuel System .................... Injection pump
Air Cleaner Type .................... Dry dual element
Lubrication System .................... Pressure with spin-on filter and cooler
Cooling System .................... Liquid-cooled
Emission Level .................... Final Tier 2
Intake Valve Clearance, in (mm) .................... 0.014 (0.36)
Exhaust Valve Clearance, in (mm) .................... 0.018 (0.46)
Fuel Tank Capacity, gal (L) .................... 64.9 (246.0)
Oil Capacity, qts (L) .................... 18.4 (17.5)
Coolant Capacity, qts (L) .................... 22.0 (21.0)
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) .................... 23.4 (37.7)
Maximum Reverse Speed, mph (kph) .................... 15.7 (25.3)

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 (Std) .................... 20.5R25
Rear Tire Size (Std) .................... 20.5R25
Front Tire Size (Opt) .................... 17.5R25
Rear Tire Size (Opt) .................... 17.5R25
Front Tire Size (Opt) .................... 550/65R25
Rear Tire Size (Opt) .................... 550/65R25

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) .................... 25.5 (96.5)

Rated Operating Capacity (Straight, Std Lift), lbs (kg) .................... 9170 (4160)
Rated Operating Capacity (Full Turn, Std Lift), lbs (kg) .................... 7820 (3545)
Rated Operating Capacity (Straight, High Lift), lbs (kg) .................... 7500 (3400)
Rated Operating Capacity (Full Turn, High Lift), lbs (kg) .................... 6370 (2890)
Tipping Load (Straight, Std Lift), lbs (kg) .................... 18340 (8320)
Tipping Load (Full Turn, Std Lift), lbs (kg) .................... 15640 (7090)
Tipping Load (Straight, High Lift), lbs (kg) .................... 15000 (6800)
Tipping Load (Full Turn, High Lift), lbs (kg) .................... 12740 (5780)
Breakout Force (Std Lift), lbs (kg) .................... 18100 (8210)
Breakout Force (High Lift), lbs (kg) .................... 16655 (7555)

Maximum Lift Height To Hinge Pin (Std Lift), in (mm) .................... 141.5 (3595)
Maximum Lift Height To Hinge Pin (High Lift), in (mm) .................... 156.5 (3975)
Height To Top Of Cab, in (mm) .................... 124.2 (3155)
Length With Bucket On Ground (Std Lift), in (mm) .................... 265.7 (6750)
Length With Bucket On Ground (High Lift), in (mm) .................... 280.9 (7135)
Width (Tread Center), in (mm) .................... 76.8 (1950)
Width (Over Tires), in (mm) .................... 97.7 (2480)
Wheel Base, in (mm) .................... 108.3 (2750)
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) .................... 3.4 (85)
Digging Depth (High Lift), in (mm) .................... 4.1 (105)
Rollback Angle At Full Height, deg .................... 55
Rollback Angle At Ground, deg .................... 39
Dump Angle At Full Height, deg .................... 50
Clearance With Bucket Dumped (Std Lift), in (mm) .................... 105.3 (2675)
Clearance With Bucket Dumped (High Lift), in (mm) .................... 120.1 (3050)
Reach At Full Height (Std Lift), in (mm) .................... 40.3 (1025)
Reach At Full Height (High Lift), in (mm) .................... 41.3 (1050)
Turning Radius (w/Bucket, Std Lift), in (mm) .................... 217.5 (5525)
Turning Radius (w/Bucket, High Lift), in (mm) .................... 224.4 (5700)
Operating Weight (Std Lift), lbs (kg) .................... 22645 (10270)
Operating Weight (High Lift), lbs (kg) .................... 22880 (10380)

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