John Deere 4850

The John Deere 4850 is a tractor produced by John Deere. It is equipped with a 466 ci 7.6 L engine. The rated power output is 207.9 hp 155.0 kW. Transmission: John Deere Power Shift. Operating weight: 17457 to 18720 pounds.

Overview

	1983 - 1988 50 SeriesRow-Crop tractor
1983 - 1988
50 Series
Row-Crop tractor

Production
Manufacturer	John Deere
Row-Crop tractor
Built in Waterloo, Iowa, USA
Original price	$70,800 (1983 2WD )
	$81,605 (1983 4WD )

John Deere 4850 Engine
John Deere 7.6L 6-cyl diesel
Engine details ...

John Deere 4850 Transmission
15-speed full power shift
Transmission details ...

John Deere 4850 Power
Engine	207.9 hp 155.0 kW
Drawbar (claimed)	162 hp 120.8 kW
PTO (claimed)	190 hp 141.7 kW
Drawbar (tested)	164.73 hp 122.8 kW
PTO (tested)	192.99 hp 143.9 kW
Performance test details ...

Mechanical
Two- or four-wheel drive
Final drives	inboard planetary
Differential lock	hydraulic rear
Power steering
Hydraulic wet disc brakes
Sound-Gard cab standard. Optional four-post Roll-Gard ROPS.

Capacity
Fuel	102 gal 386.1 L
Hydraulic system	18.6 gal (2WD) 70.4 L
	21.6 gal (4WD) 81.8 L

Hydraulics
Type	closed center
Capacity	18.6 gal (2WD) 70.4 L
	21.6 gal (4WD) 81.8 L
Pressure	2277 psi 157.0 bar
Valves	2 or 3
Pump flow	29.5 gpm 111.7 lpm

Tractor hitch
Rear Type	III
Control	lower-link draft sensing
Rear lift	9,599 lbs 4354 kg

Power Take-off (PTO)
Rear PTO	independent
Clutch	hydraulic wet disc
Rear PTO Type	1000
Engine RPM	1000@2200

Dimensions & Tires
2WD Wheelbase	118.5 inches 300 cm
4WD Wheelbase	117.1 inches 297 cm
Weight	17457 to 18720 pounds
Front tire	11.00-16
2WD Rear tire	20.8-38
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	90
Batteries	2
Battery volts	6
	12 OptOptional

References
Loaders, Spreaders and Blades published in 1984, by John Deere
Tractors 100 to 190 HP published in 1984, by John Deere
Tractors 105 to 190 HP published in 1984, by John Deere
Row-Crop Tractors Product Information Handbook published in 1984, by John Deere
Row-Crop Tractors Product Information Handbook published in 1986, by John Deere
Mechanical Front-Wheel Drive published in 1984, by John Deere
Agricultural Price List published in 1983, by John Deere

Engine

Engine Detail — 466 ci / 7.6 L Diesel

Manufacturer	John Deere
Configuration	intercooled turbocharged diesel, 6-cylinder, liquid-cooled
Displacement	466 ci 7.6 L
Bore/Stroke	4.56x4.75 inches 116 x 121 mm
Power	207.9 hp 155.0 kW
Air cleaner	dry
Compression	15:1
Rated RPM	2200
Firing order	1-5-3-6-2-4
Starter volts	12
Oil capacity	21 qts 19.9 L
Coolant capacity	32 qts 30.3 L

John Deere 4850 Engine

Transmission

Transmission — John Deere Power Shift

Transmission	John Deere Power Shift
Type	full power shift
Gears	15 forward and 4 reverse
Clutch	Perma-Clutch wet disc
Oil capacity	74.4 qts (2WD) 70.4 L
	86.4 qts (4WD) 81.8 L
Full (clutchless) power shift can be made between gears, forward and reverse.
20.8-38 rear tires.

Dimensions

John Deere 4850 Tires
2WD Standard tires (ag)	Front: 11.00-16. Rear: 20.8-38
4WD Standard tires (ag)	Front: 18.4-26. Rear: 20.8-38
Ag rear	18.4-38
	18.4R38
	20.8R38
	18.4-42
	18.4R42

Dimensions
2WD Wheelbase	118.5 inches 300 cm
4WD Wheelbase	117.1 inches 297 cm
Length	179.7 inches (2WD) 456 cm
	184.8 inches (4WD) 469 cm
Width	118 inches (standard axle) 299 cm
	85 inches (optional axle) 215 cm
	108 inches (optional axle) 274 cm
Height	117.8 inches 299 cm
Shipping weight	17,457 lbs 7918 kg
Operating weight	18,720 lbs (2WD) 8491 kg
Ground clearance	14.92 inches 37 cm
Rack-and-pinion rear axle	3.94 by 96 inches 100 by 2438 mm
Rack-and-pinion rear axle	3.94 by 108 inches 100 by 2743 mm
Rack-and-pinion rear axle	3.94 by 118 inches 100 by 2997 mm

Tests

Nebraska Tractor Test 1461
Diesel Power Shift 2WD October 11 - November 11, 1982 Link: Nebraska Tractor Test 1461 file
PTO performance
Power at rated engine speed	192.99 hp 143.9 kW
Fuel use	11.0 gal/hour 41.6 l/hour
Drawbar performance
Max power	164.73 hp 122.8 kW
Fuel use	11.0 gal/hour 41.6 l/hour
Gear 10 used for power test.
Max pull	18,789 lbs 8522 kg
Gear 5 used for pull test.