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John Deere 4850 vs John Deere 7820

Verdict: John Deere 4850 vs John Deere 7820

The John Deere 4850 and the John Deere 7820 are both tractors — here is how they stack up on the figures that matter. John Deere 4850 leads on rated power with 193 hp against 189 hp. John Deere 7820 is the lighter machine (16,002 kg vs 17,457 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 7820 is the newer design (2004 vs 1983). In short: choose the John Deere 4850 for outright pulling power, or the John Deere 7820 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Fit & specs
John Deere 4850 Tractor
John Deere
94
Fit score
Best match
Clear
John Deere 7820 Tractor
John Deere
94
Fit score
Best match
Clear
Rated power
193 hp
189 hp
Confidence
98%
98%
Guide price
Overview
Manufacturer
John DeereReference
John DeereReference
20.8-38 rear tires.Reference
Hydro-mechanical IVT controlled via right-hand speed lever and left-hand reverser lever. Knob on the speed lever adjusts the set speeds for two ranges. Minimum speed of 50 meters per hour (164 feet per hour). The IVT was available on the 7820 only when equipped with four-wheel drive.Reference
Original price
$81,605 (1983 4WD )Reference
Final drives
inboard planetaryReference
Differential lock
hydraulic rearReference
Engine
Engine
155.0 kWReference
Drawbar (claimed)
120.8 kWReference
Drawbar (tested)
122.8 kWReference
107.0 kWReference
Displacement
7.6 LReference
8.1 LReference
Bore/Stroke
116 x 121 mmReference
116 x 129 mmReference
Power
155.0 kWReference
Air cleaner
dryReference
Compression
15:1Reference
16.5:1Reference
Rated RPM
2200Reference
2100Reference
Firing order
1-5-3-6-2-4Reference
Starter volts
12Reference
12Reference
Oil capacity
81.8 LReference
24.0 LReference
Coolant capacity
30.3 LReference
32.0 LReference
Power at rated engine speed
143.9 kWReference
116.7 kWReference
Max power
122.8 kWReference
107.0 kWReference
Engine (gross)
141.0 kWReference
Engine (net)
136.0 kWReference
Engine (max)
149.0 kWReference
Rated Power (net)
136.0 kWReference
Rated Power (gross)
141.0 kWReference
Maximum Power (net)
145.0 kWReference
Maximum Power (gross)
149.0 kWReference
Idle RPM
875-2200Reference
Transmission
Transmission
John Deere Power ShiftReference
AutoPowr IVTReference
Gears
15 forward and 4 reverseReference
infinite forward and reverseReference
PTO & Hydraulics
PTO (claimed)
141.7 kWReference
115.6 kWReference
PTO (tested)
143.9 kWReference
130.0 kWReference
Hydraulic system
81.8 LReference
107.9 LReference
Type
full power shiftReference
infinitely variable transmissionReference
Capacity
81.8 LReference
107.9 LReference
Pressure
157.0 barReference
210.0 barReference
Valves
2 or 3Reference
7Reference
Pump flow
111.7 lpmReference
121.9 lpmReference
Rear Type
IIIReference
3/3NReference
Control
lower-link draft sensingReference
Rear lift
4354 kgReference
6350 kgReference
Rear PTO
independentReference
independentReference
Clutch
Perma-Clutch wet discReference
hydraulic wet discsReference
Rear PTO Type
1000Reference
1000 (1.75)Reference
Engine RPM
1000@2200Reference
1000E@1750Reference
SCV flow
113.6 lpmReference
Front PTO
independentReference
Front PTO Type
1000 (1.75)Reference
Power at rated PTO speed
127.5 kWReference
Capacities
Fuel
386.1 LReference
358.4 LReference
Front axle
14.4 LReference
Front hubs
1.9 LReference
HD Front hubs
3.8 LReference
Dimensions
2WD Wheelbase
300 cmReference
4WD Wheelbase
297 cmReference
Weight
17457 to 18720 poundsReference
16002 to 17603 poundsReference
Front tire
11.00-16Reference
11.00-16Reference
2WD Rear tire
20.8-38Reference
2WD Standard tires (ag)
Front: 11.00-16. Rear: 20.8-38Reference
4WD Standard tires (ag)
Front: 18.4-26. Rear: 20.8-38Reference
Ag rear
18.4R42Reference
Length
469 cmReference
610 cmReference
Width
274 cmReference
299 cmReference
Height
299 cmReference
Shipping weight
7918 kgReference
Operating weight
8491 kgReference
Ground clearance
37 cmReference
Rack-and-pinion rear axle
100 by 2997 mmReference
Wheelbase
286 cmReference
Rear tire
18.4R42 (2WD)Reference
Standard tires (ag)
Front: 14.9R30. Rear: 18.4R42 (4WD)Reference
Height (cab)
318 cmReference
2WD Clearance (front axle)
65 cmReference
4WD Clearance (front axle)
56 cmReference
2WD Clearance (drawbar)
42 cmReference
4WD Clearance (drawbar)
41 cmReference
Rear axle
99 by 2997 mmReference
2WD Shipping
7258 kgReference
4WD Shipping
7757 kgReference
4WD IVT Shipping
7984 kgReference
Operating
7815 kgReference
John Deere 4850 attachments
4850 Serial Number Location
4850 Serial Numbers
1983
1000Reference
1984
5001Reference
1985
8001Reference
1986
10001Reference
1987
11001Reference
1988
12001Reference
1989
14501Reference
Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
alternatorReference
Charging amps
90Reference
150Reference
Batteries
2Reference
2Reference
Battery volts
12Reference
12Reference
Battery CCA
925Reference
Test results
Fuel use
41.6 l/hourReference
36.0 l/hourReference
Max pull
8522 kgReference
9813 kgReference
Speeds
John Deere 7820 attachments
7820 Serial Number Location

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.

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