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| info | |
| 2002 - 2008 | |
| Next model: | John Deere 6115D |
| Series back: | John Deere 6403 |
| Production | |
| Manufacturer: | John Deere |
| Factory: | Saltillo, Mexico |
| Capacity | |
| Fuel: | 40 gal [151.4 L] |
| 3-Point Hitch | |
| Rear Type: | II |
| Rear lift (at ends): | 5,292 lbs [2400 kg] |
| Rear lift (at 24"/610mm): | 4,829 lbs [2190 kg] |
| Power Take-off (PTO) | |
| Rear PTO: | independent |
| Rear RPM: | 540, 1000 |
| Dimensions & Tires | |
| Wheelbase: | 104 inches [264 cm] (2WD), 103.8 inches [263 cm] (4WD) |
| Weight: | 8563 to 9480 pounds |
| Front tire: | 10.00-16 |
| Rear tire: | 18.4-38 |
| 6603 Serial Numbers | |
| - Serial numbers unknown - |
| John Deere 6603 Power | |
| Engine: | 109 hp [81.3 kW] |
| PTO (claimed): | 95 hp [70.8 kW] |
| Mechanical | |
| Chassis: | 4x2 2WD, 4x4 MFWD 4WD optional |
| Steering: | hydrostatic power |
| Brakes: | mechanical wet disc |
| Cab: | ROPS. Cab optional. |
| Hydraulics | |
| Type: | open center |
| Pressure: | 2756 psi [190.0 bar] |
| Valves: | 2 to 3 |
| Pump flow: | 12 gpm [45.4 lpm] |
| Total flow: | 15 gpm [56.8 lpm] |
| Electrical | |
| Ground: | negative |
| Battery | |
| Number: | 1 |
| Cold-cranking amps: | 925 |
| Volts: | 12 |
| info | |
| Bore/Stroke: | 4.19x5.00 inches [106 x 127 mm] |
| Power: | 109 hp [81.3 kW] |
| Compression: | 17:1 |
| Rated RPM: | 2100 |
| Firing order: | 1-5-3-6-2-4 |
| Starter volts: | 12 |
| Starter power: | 4.2 hp [3.1 kW] |
| Oil capacity: | 20 qts [18.9 L] |
| Coolant capacity: | 19.5 qts [18.5 L] |
| Intake valve clearance: | 0.013 inches [0.330 mm] |
| Exhaust valve clearance: | 0.017 inches [0.432 mm] |
| Engine Detail | |
| John Deere 6068T, turbocharged diesel, 6-cylinder, liquid-cooled, 414 ci [6.8 L] |
| info | |
| Next model: | John Deere 6115D |
| Series back: | John Deere 6403 |
| Transmission | |
| Transmission: | top shaft syncro |
| Gears: | 9 forward and 3 reverse |
| Oil capacity: | 61.2 qts [57.9 L] |
| info | |
| Next model: | John Deere 6115D |
| Series back: | John Deere 6403 |
| Dimensions | |
| Weight (shipping): | 8,563 lbs [3884 kg] (2WD ROPS), 9,171 lbs [4159 kg] (4WD ROPS), 8,871 lbs [4023 kg] (2WD cab), 9,480 lbs [4300 kg] (4WD cab) |
| Wheelbase: | 104 inches [264 cm] (2WD), 103.8 inches [263 cm] (4WD) |
| Length: | 175 inches [444 cm] (2WD), 171.6 inches [435 cm] (4WD) |
| Width: | 65 inches [165 cm] |
| Height (cab): | 78 inches [198 cm] |
| Height (exhaust): | 118 inches [299 cm] |
| Ground clearance: | 18 inches [45 cm] |
| John Deere 6603 Tires | |
| Ag front: | 10.00-16 |
| Ag rear: | 18.4-38 |