John Deere 6403 Engine Specifications
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)
Engine Bore, in (mm) ……………. 4.15 (105.0)
Engine Stroke, in (mm) ……………. 5.00 (127.0)
Aspiration ……………. 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 ……………. 17.0:1
Firing Order ……………. 1-3-4-2
Fuel System ……………. Injection pump
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
JD 6403 Power Take-Off
PTO Operational Type ……………. Independent
PTO Horsepower, 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 Configuration
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)
John Deere 6403 Wheels and Tires
Drive Wheels ……………. 2WD/4WD
Steering Configuration ……………. Front Steer
Steering System ……………. Hydrostatic power
Brakes Type ……………. Differential wet disc
Front Tire Size (2WD) ……………. 10.0-16
Rear Tire Size (2WD) ……………. 16.9-34
Front Tire Size (4WD) ……………. 12.4-24
Rear Tire Size (4WD) ……………. 18.4-34
Front Tread, in (mm) ……………. 58.7-80.6 (1490-2040)
RearTread, in (mm) ……………. 60.1-79.8 (1520-2020)
JD 6403 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
Standard Lift Capacity at lift pin, lb (kg) ……………. 4830 (2190)
Standard Lift Capacity 24″ (0.6m) behind pin, lb (kg) …………….
3150 (6945)
John Deere 6403 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)
Height, in (mm) ……………. 113 (2880)
Ground Clearance (2WD), in (mm) ……………. 23.5 (600)
Ground Clearance (4WD), in (mm) ……………. 17 (430)
Weight (ROPS, 2WD), lb (kg) ……………. 7915 (3590)
Weight (Cab, 2WD), lb (kg) ……………. 8220 (3730)
Weight (ROPS, 4WD), lb (kg) ……………. 8540 (3875)
Weight (Cab, 4WD), lb (kg) ……………. 8850 (4015)