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John Deere 6603 Specifications
The John Deere 6603 is a 2WD or 4WD utility tractor from 6003 series. This model was manufactured from 2002 to 2008. The John Deere 6603 driveline consists of 414.4 cu.in (6.8 L) John Deere 6068T 4-cycle vertical 6-cylinder direct injection turbocharged liquid-cooled diesel engine with a rated power of 109 Hp (81.3 kW) and Top Shaft Synchronized transmission with 9 forward and 3 reverse gears.
The open center hydraulic system includes a dual gear pump with rated fluid flow of 15 gal/min (57 l/min). The John Deere 6603 is equipped with a hydrostatic power steering, independent PTO type, differential wet disc brakes, 12.4x24 (2WD) or 13.4x26 (4WD) front tires, and 18.4x34 (2WD) or 18.4x38 (4WD) rear tires.
| Engine Specs |
Engine Model ................ John Deere 6068T
Engine Type ................ 4-Stroke 6-cylinder turbocharged diesel
Number of Cylinders ................ 6
Displacement, cu.in (L) ................ 414.4 (6.80)
Cylinder Bore, in (mm) ................ 4.19 (106.0)
Piston Stroke, in (mm) ................ 5.00 (127.0)
Aspiration Type ................ Turbocharged
Rated Engine Power, hp (kW) ................ 109.0 (81.3)
Rated Engine Speed, rpm ................ 2100
Operating Speed Range, rpm ................ 850-2275
Maximum Torque, Nm (lb-ft) ................ 371 (274)
Torque Speed, rpm ................ 1400
Firing Order ................ 1-5-3-6-2-4
Compression Ratio ................ 17:1
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) ................ 20.1 (19.0)
Coolant Capacity, qts (L) ................ 18.5 (19.5)
Electrical System Rating, Volts ................ 12
Charging System ................ Alternator
Alternator Rating, Amps ................ 65
| Power Take-Off |
PTO Operational Type ................ Independent
PTO Power, hp (kW) ................ 95 (70.8)
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 Synchronized
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) ................ 19.4 (31.2)
Maximum Reverse Speed, mph (kph) ................ 18.2 (29.3)
| 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) ................ 12.4x24
Rear Tire Size (2WD) ................ 18.4x34
Front Tire Size (4WD) ................ 13.6x24
Rear Tire Size (4WD) ................ 18.4x38
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) ................ 15.0 (57.0)
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) ................ 104 (2645)
Wheelbase (4WD), in (mm) ................ 103.8 (2635)
Length (2WD), in (mm) ................ 175 (4450)
Length (4WD), in (mm) ................ 171.6 (4360)
Overall Width, in (mm) ................ 65 (1650)
Overall Height, in (mm) ................ 118 (2990)
Ground Clearance (2WD), in (mm) ................ 23.5 (600)
Ground Clearance (4WD), in (mm) ................ 17 (430)
Weight (ROPS, 2WD), lbs (kg) ................ 8565 (3885)
Weight (Cab, 2WD), lbs (kg) ................ 8870 (4025)
Weight (ROPS, 4WD), lbs (kg) ................ 9170 (4160)
Weight (Cab, 4WD), lbs (kg) ................ 9480 (4300)
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| Farm Tractors Technical Specifications |