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John Deere 6403 Specifications
The John Deere 6403 is a two-wheel drive or four-wheel drive utility tractor from 6003 Series. This model was manufactured from 2002 to 2008. The components of John Deere 6403 powerline system: a 275 cubic inches (4.5 L) John Deere 4045T PowerTech 4-cycle vertical 4-cylinder direct injection turbocharged liquid-cooled diesel engine with a rated power of 98 hp (73.1 kW), and Top Shaft Synchronizer transmission with 9 forward and 3 reverse gears.
The open center hydraulic system includes a dual gear pump with rated fluid flow of 12 gal/min (45.4 l/min). The John Deere 6403 is equipped with a hydrostatic power steering system, differential wet disc brakes, 10.00x16 (2WD) or 12.4x24 (4WD) front tyres, and 16.9x34 (2WD) or 18.4x34 (4WD) rear tyres.
| Engine Specs |
Engine Model ................ John Deere 4045T PowerTech
Engine Type ................ 4-Stroke 4-cylinder turbocharged diesel
Number of Cylinders ................ 4, in-line
Displacement, cu.in (L) ................ 275.0 (4.50)
Cylinder Bore, in (mm) ................ 4.15 (105.0)
Piston Stroke, in (mm) ................ 5.00 (127.0)
Aspiration Type ................ Turbocharged
Rated Engine Power, hp (kW) ................ 98.0 (73.1)
Rated Engine Speed, rpm ................ 2100
Operating Speed Range, rpm ................ 850-2275
Maximum Torque, Nm (lb-ft) ................ 331 (244)
Torque Speed, rpm ................ 1500
Compression Ratio ................ 17.0:1
Firing Order ................ 1-3-4-2
Fuel System ................ Direct injection
Lubrication System ................ Full pressure
Cooling System ................ Liquid-cooled
Air Cleaner Type ................ Dry element
Valve Clearance (Intake), in (mm) ................ 0.012-0.015 (0.31-0.38)
Valve Clearance (Exhaust), in (mm) ................ 0.016-0.019 (0.41-0.48)
Fuel Tank Capacity, gal (L) ................ 40.0 (152.0)
Oil Capacity, qts (L) ................ 13.0 (12.0)
Coolant Capacity, qts (L) ................ 14.3 (13.5)
Electrical System Rating, Volts ................ 12
Charging System ................ Alternator
Alternator Rating, Amps ................ 65
| Power Take-Off |
PTO Operational Type ................ Independent
PTO Power, hp (kW) ................ 85.0 (63.0)
PTO Shaft Size, in (mm) ................ 1.4 (35.0)
PTO Speed, rpm ................ 540/1000
PTO/Engine Speed, rpm ................ 540/2100
PTO/Engine Speed, rpm ................ 1000/2100
| Transmission |
Transmission Type ................ Top Shaft Synchronizer
Gearbox Type ................ 9F/3R
Number of Forward Gears ................ 9
Number of Reverse Gears ................ 3
Oil Capacity, qts (L) ................ 63.6 (60.0)
Maximum Forward Speed, mph (kph) ................ 18.3 (29.5)
Maximum Reverse Speed, mph (kph) ................ 17.3 (27.8)
| Wheels and Tires |
Wheel Drive System ................ 2WD/4WD
Steering Configuration ................ Front Steer
Steering System ................ Hydrostatic power
Brakes Type ................ Differential wet disc
Front Tire Size (2WD) ................ 10.00x16
Rear Tire Size (2WD) ................ 16.9x34
Front Tire Size (4WD) ................ 12.4x24
Rear Tire Size (4WD) ................ 18.4x34
Front Tread, in (mm) ................ 58.7-80.6 (1490-2040)
RearTread, in (mm) ................ 60.1-79.8 (1520-2020)
| Hydraulics and Hitch |
Hydraulic System Type ................ Open Center
Implement Pump Type ................ Dual Gear
Implement Pump Flow, gpm (Lpm) ................ 12.0 (45.4)
Hydraulic Pressure, bar (psi) ................ 190 (2755)
Hydraulic Capacity, qts (L) ................ 15.8 (60.0)
Number of Standard Remote Valves ................ 2/3
3-Point Hitch Category ................ 2
Fixed Draft Links ................ Standard
Lift Capacity at lift pin, lbs (kg) ................ 4830 (2190)
Lift Capacity at 24" (0.6m) behind pin, lbs (kg) ................ 3150 (6945)
| Dimensions and Weight |
Wheelbase (2WD), in (mm) ................ 91.3 (2120)
Wheelbase (4WD), in (mm) ................ 91 (2310)
Length (2WD), in (mm) ................ 149.2 (3860)
Length (4WD), in (mm) ................ 157.9 (4010)
Overall Width, in (mm) ................ 65 (1650)
Overall Height, in (mm) ................ 113 (2880)
Ground Clearance (2WD), in (mm) ................ 23.5 (600)
Ground Clearance (4WD), in (mm) ................ 17 (430)
Weight (ROPS, 2WD), lbs (kg) ................ 7915 (3590)
Weight (Cab, 2WD), lbs (kg) ................ 8220 (3730)
Weight (ROPS, 4WD), lbs (kg) ................ 8540 (3875)
Weight (Cab, 4WD), lbs (kg) ................ 8850 (4015)
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