John Deere 4850: all source data
All 88 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) | Row-Crop tractor |
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| (no label) | Built in Waterloo, Iowa, USA |
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| Original price | $70,800 (1983 2WD ) |
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| Original price | $81,605 (1983 4WD ) |
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Engine| (no label) | John Deere 7.6L 6-cyl diesel |
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Transmission| (no label) | 15-speed full power shift |
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Power| Engine | 207.9 hp | 155.0 kW |
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| Drawbar (claimed) | 162 hp | 120.8 kW |
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| PTO (claimed) | 190 hp | 141.7 kW |
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| Drawbar (tested) | 164.73 hp | 122.8 kW |
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| PTO (tested) | 192.99 hp | 143.9 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 | hydraulic rear |
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| (no label) | Power steering |
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| (no label) | Hydraulic wet disc brakes |
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| (no label) | Sound-Gard cab standard. Optional four-post Roll-Gard ROPS. |
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Capacity| Fuel | 102 gal | 386.1 L |
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| Hydraulic system | 18.6 gal (2WD) | 70.4 L |
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| Hydraulic system | 21.6 gal (4WD) | 81.8 L |
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Hydraulics| Type | closed center |
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| Capacity | 18.6 gal (2WD) | 70.4 L |
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| Capacity | 21.6 gal (4WD) | 81.8 L |
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| Pressure | 2277 psi | 157.0 bar |
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| Valves | 2 or 3 |
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| Pump flow | 29.5 gpm | 111.7 lpm |
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Hitch| Rear Type | III |
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| Control | lower-link draft sensing |
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| Rear lift | 9,599 lbs | 4354 kg |
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Pto| Rear PTO | independent |
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| Clutch | hydraulic wet disc |
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| Rear PTO Type | 1000 |
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| Engine RPM | 1000@2200 |
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Dimensions| 2WD Wheelbase (2WD) | 118.5 inches | 300 cm |
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| 4WD Wheelbase (4WD) | 117.1 inches | 297 cm |
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| Weight | 17457 to 18720 pounds |
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| Front tire | 11.00-16 |
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| 2WD Rear tire (2WD) | 20.8-38 |
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Serial location| (no label) | Serial number plate on rear of tractor. |
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Electrical| Ground | negative |
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| Charging system | alternator |
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| Charging amps | 90 |
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| Batteries | 2 |
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| Battery volts | 6 |
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| Battery volts | 12 |
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Engine
Engine detail| (no label) | John Deere |
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| (no label) | intercooled turbocharged diesel |
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| (no label) | 6-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 466 ci | 7.6 L |
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| Bore/Stroke | 4.56x4.75 inches | 116 x 121 mm |
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| Power | 207.9 hp | 155.0 kW |
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| Air cleaner | dry |
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| Compression | 15:1 |
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| Rated RPM | 2200 |
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| Firing order | 1-5-3-6-2-4 |
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| Starter volts | 12 |
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| Oil capacity | 21 qts | 19.9 L |
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| Coolant capacity (Coolant) | 32 qts | 30.3 L |
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Transmission
Transmission| Transmission | John Deere Power Shift |
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| Type | full power shift |
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| Gears | 15 forward and 4 reverse |
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| Clutch | Perma-Clutch wet disc |
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| Oil capacity | 74.4 qts (2WD) | 70.4 L |
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| Oil capacity | 86.4 qts (4WD) | 81.8 L |
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| (no label) | Full (clutchless) power shift can be made between gears, forward and reverse. |
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Dimensions
Tires| 2WD Standard tires (ag) (2WD) | Front: 11.00-16. Rear: 20.8-38 |
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| 4WD Standard tires (ag) (4WD) | Front: 18.4-26. Rear: 20.8-38 |
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| Ag rear | 18.4-38 |
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| Ag rear | 18.4R38 |
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| Ag rear | 20.8R38 |
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| Ag rear | 18.4-42 |
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| Ag rear | 18.4R42 |
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Dimensions| 2WD Wheelbase (2WD) | 118.5 inches | 300 cm |
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| 4WD Wheelbase (4WD) | 117.1 inches | 297 cm |
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| Length | 179.7 inches (2WD) | 456 cm |
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| Length | 184.8 inches (4WD) | 469 cm |
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| Width | 118 inches (standard axle) | 299 cm |
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| Width | 85 inches (optional axle) | 215 cm |
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| Width | 108 inches (optional axle) | 274 cm |
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| Height | 117.8 inches | 299 cm |
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| Shipping weight | 17,457 lbs | 7918 kg |
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| Operating weight | 18,720 lbs (2WD) | 8491 kg |
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| Ground clearance | 14.92 inches | 37 cm |
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| Rack-and-pinion rear axle (Rack-and-pinion) | 3.94 by 96 inches | 100 by 2438 mm |
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| Rack-and-pinion rear axle (Rack-and-pinion) | 3.94 by 108 inches | 100 by 2743 mm |
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| Rack-and-pinion rear axle (Rack-and-pinion) | 3.94 by 118 inches | 100 by 2997 mm |
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