John Deere 6603: all source data
All 84 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Manufacturer | John Deere |
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| (no label) | Utility tractor |
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| (no label) | Built in Saltillo, Mexico |
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| (no label) | Original price was $34,870 in 2004 with 2WD |
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Engine| (no label) | John Deere 6.8L 6-cyl diesel |
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| Fuel tank | 41.7 gal | 157.8 L |
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Transmission| (no label) | 9-speed partially synchronized |
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Power| Engine | 112 hp | 83.5 kW |
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| PTO (claimed) | 95 hp | 70.8 kW |
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Mechanical| (no label) | Two- or four-wheel drive |
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| Final drives | inboard planetary |
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| Differential lock | mechanical rear |
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| (no label) | Power steering |
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| (no label) | Mechanical wet disc brakes |
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| (no label) | Two-post folding ROPS. ComfortVantage Cab optional. |
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Hydraulics| Type | open center |
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| Pressure | 2750 psi | 189.6 bar |
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| Rear valves | 2 or 3 |
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| Pump flow | 15 gpm | 56.8 lpm |
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| Total flow | 15 gpm | 56.8 lpm |
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Hitch| Rear Type | II |
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| Control | mechanical lower-link draft sensing |
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| Rear lift (at ends) | 5,292 lbs | 2400 kg |
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| Rear lift (at 24"/610mm) | 4828 lbs | 2189 kg |
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Pto| Rear PTO | independent |
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| Clutch | dry disc |
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| Rear PTO Type | 540/1000 |
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| Engine RPM | 540@2100 |
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| Engine RPM | 1000@2100 |
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Dimensions| 2WD Wheelbase (2WD) | 104.1 inches | 264 cm |
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| 4WD Wheelbase (4WD) | 103.8 inches | 263 cm |
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| Weight | 8776 to 10252 pounds |
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| Front tire | 10.00-16 |
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| Rear tire | 18.4-38 |
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Serial location| (no label) | Serial number plate on the right side of the tractor frame, above the front axle. |
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Electrical| Ground | negative |
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| Charging system | alternator |
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| Charging amps | 65 |
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| Battery CCA | 925 |
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| Battery volts | 12 |
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Engine
Engine detail| (no label) | John Deere 6068T |
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| (no label) | turbocharged diesel |
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| (no label) | 6-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 414 ci | 6.8 L |
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| Bore/Stroke | 4.19x5.00 inches | 106 x 127 mm |
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| Power | 112 hp | 83.5 kW |
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| Compression | 17:1 |
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| Rated RPM | 2100 |
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| Firing order | 1-5-3-6-2-4 |
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| Starter volts | 12 |
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| Starter power | 4.2 hp | 3.1 kW |
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| Oil capacity | 20 qts | 18.9 L |
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| Coolant capacity (Coolant) | 19.5 qts | 18.5 L |
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| Intake valve clearance | 0.013 inches | 0.330 mm |
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| Exhaust valve clearance | 0.017 inches | 0.432 mm |
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Transmission
Transmission| Transmission | Top Shaft Synchronized (TSS) |
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| Type | partially synchronized |
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| Gears | 9 forward and 3 reverse |
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| Clutch | 305mm cerametalic dry disc |
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| Oil capacity | 61.2 qts | 57.9 L |
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| (no label) | Three gears (1-3), plus reverse, (R) in three ranges (A-C). Gear shifts are synchronized. Tractor must be stopped to shift range. |
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Dimensions
Tires| Standard tires (ag) | Front: 10.00-16. Rear: 18.4-38 |
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| Standard tires (ag) | Front: 14.9-24. Rear: 18.4-38 |
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Dimensions| 2WD Wheelbase (2WD) | 104.1 inches | 264 cm |
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| 4WD Wheelbase (4WD) | 103.8 inches | 263 cm |
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| 2WD Length (2WD) | 175 inches | 444 cm |
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| 4WD Length (4WD) | 171.6 inches | 435 cm |
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| Width | 73 inches (rear fenders) | 185 cm |
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| Ground clearance | 18 inches | 45 cm |
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| Flanged rear axle (Flanged) | 65.8 inch length | 1671 mm |
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| 2WD Front tread | 58.7 to 80.4 inches | 149 to 204 cm |
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| 4WD Front tread | 63.6 to 79.4 inches | 161 to 201 cm |
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| Rear tread | 59.5 to 79.4 inches | 151 to 201 cm |
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Weight| 2WD ROPS Shipping (2WD ROPS) | 8776 lbs | 3980 kg |
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| 4WD ROPS Shipping (4WD ROPS) | 9361 lbs | 4246 kg |
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| 2WD Cab Shipping (2WD Cab) | 9658 lbs | 4380 kg |
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| 4WD Cab Shipping (4WD Cab) | 10252 lbs | 4650 kg |
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Height| Steering wheel | 82.3 inches | 209 cm |
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| Hood | 70 inches | 177 cm |
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| ROPS | 110.7 inches | 281 cm |
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| Height (Folded ROPS) | 83.4 inches | 211 cm |
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| Cab | 78 inches | 198 cm |
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| Exhaust | 118 inches | 299 cm |
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