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 listed engine power is Diesel (listed): 207.9 hp / 155.0 kW. Transmission: John Deere Power Shift. Operating weight: 17457 to 18720 pounds.

Engine Power
Diesel (listed): 207.9 hp / 155.0 kW
Fuel & Capacities
102 gal 386.1 L
Transmission
John Deere Power Shift
Operating Weight
18,720 lbs (2WD) 8491 kg

Overview

John Deere 4850 tractor photo
1983 - 1988 50 SeriesRow-Crop tractor 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
4850 references literature
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
John Deere 4850 engine image

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.
4850 Power Shift full power shift speeds

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.

Recommended Implements & Sizing Guide

Engineering recommendations for John Deere 4850 based on its 207.9 HP power envelope and ASAE agricultural standards.

Implement & OperationRecommended SizeWorkload RatingEngineering Notes
Moldboard PlowPrimary Tillage
5 to 7 Bottom (18")5 - 7 铧 (45 cm)Commercial / Field ScaleLarge acreage tillage; requires front ballast weights.
Rotary Cutter / MowerMowing & Clearing
15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼Commercial / Field ScaleLarge commercial field and roadside mowing operations.
Rotary TillerSeedbed Prep
90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机Commercial / Field ScaleDeep intensive seedbed preparation for commercial row crops.
Disc HarrowSecondary Tillage
15 to 22 ft Folding Disc4.5 - 6.7 m 折叠式圆盘耙Commercial / Field ScaleWide commercial field leveling; requires hydraulic remotes.
Hay BalerHay & Forage
Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m)Commercial / Field ScaleHigh-capacity commercial forage harvesting (1000 RPM PTO).
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for John Deere 4850.

Estimated Continuous Field Runtime: 9.4 hrs

Approximately 9.4 hours of continuous field operation at ~75% rated power on a full tank (102 gal / 386.1 L).

Estimated 75% Load Fuel Burn~10.8 gal/hr (40.9 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours

John Deere 4850 Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for John Deere 4850.

Converted Equivalents:

Horsepower (HP)207.9 hp
Kilowatts (kW)155 kW
Metric Horsepower (PS / CV)210.8 PS

Direct Competitor Comparison

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