Compare/John Deere 4120 vs John Deere AR Styled

John Deere 4120 vs John Deere AR Styled

Verdict: John Deere 4120 vs John Deere AR Styled

The John Deere 4120 and the John Deere AR Styled are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 35 hp. John Deere 4120 is the lighter machine (1,678 kg vs 5,244 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 4120 is the newer design (2004 vs 1935). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

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Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

John Deere

Fit score

Best match

Clear

John Deere

Fit score

Best match

Clear

Rated power

35 hp

Confidence

98%

Guide price

—

Overview

Manufacturer

John DeereReference

With 16.3-28 rear tires.Reference

With 13-26 rear tires.Reference

Steering

hydrostatic powerReference

—

Total built

—

1,495 (AO)Reference

Engine

32.1 kWReference

—

Displacement

2.4 LReference

5.3 LReference

Bore/Stroke

86 x 105 mmReference

140 x 171 mmReference

Power

32.1 kWReference

—

Compression

20:1Reference

4.5:1Reference

Rated RPM

2400Reference

975Reference

Starter volts

12Reference

Starter power

2.2 kWReference

—

Oil capacity

36.3 LReference

30.3 LReference

Coolant capacity

6.1 LReference

33.1 LReference

Fuel Type

dieselReference

—

No of Cylinders

4 cylinderReference

—

Rated engine speed

2,400 RPMReference

—

Bore and stroke

3.386x4.134 inchesReference

—

Compression ratio

20:1Reference

—

Cooling system

liquid-cooledReference

—

Gas Drawbar (claimed)

—

26.0 kWReference

All-fuel Drawbar (claimed)

—

20.2 kWReference

Gas Belt (claimed)

—

29.2 kWReference

All-fuel Belt (claimed)

—

23.1 kWReference

Plows

—

2 (16-inch)Reference

Drawbar (tested)

—

25.4 kWReference

Belt (tested)

—

28.2 kWReference

Firing order

—

1-2Reference

Sparkplug

—

Champion 8Reference

Sparkplug gap

—

0.762 mmReference

Point gap

—

0.533 mmReference

Intake valve clearance

—

0.508 mmReference

Exhaust valve clearance

—

0.508 mmReference

Oil change

—

120 hReference

Air cleaner

—

oil bathReference

Belt power (max)

—

28.2 kWReference

Max power

—

25.4 kWReference

Transmission

eHydroReference

John DeereReference

Gears

infinite forward and reverseReference

6 forward and 1 reverseReference

Transmission Type

E-HSTReference

—

forward and reverse options

PowrReverser - 12 F and 12 R | hydrostatic - Infinite F and RReference

—

Wheel Drive

4WDReference

—

Oil type

—

SAE 90Reference

PTO & Hydraulics

PTO (claimed)

26.1 kWReference

—

Hydraulic system

36.3 LReference

7.9 LReference

Type

hydrostaticReference

unsynchronized gearReference

Capacity

36.3 LReference

7.9 LReference

Pressure

172.4 barReference

64.1 barReference

Pump flow

45.4 lpmReference

33.7 lpmReference

Total flow

64.7 lpmReference

—

Steering flow

19.3 lpmReference

—

Rear Type

IReference

—

Rear lift (at ends)

1419 kgReference

—

Rear lift (at 24"/610mm)

1134 kgReference

—

Rear PTO

independentReference

transmissionReference

Rear PTO Type

540Reference

540 (1.375)Reference

Mid PTO

independent (optional)Reference

—

Mid PTO Type

2100Reference

—

Valves

—

1Reference

Capacities

Fuel

54.9 LReference

75.7 LReference

Fuel tank

54.9 LReference

—

Crankcase oil volume

7.9 qtsReference

—

Aux. fuel

—

3.8 LReference

Diameter

—

32 cmReference

RPM

—

975Reference

Speed

—

996.70 meters/minReference

Dimensions

Wheelbase

181 cmReference

192 cmReference

Weight

662 kgReference

5244 to 5600 poundsReference

Front tire

8.00-16Reference

6.00-16Reference

Rear tire

13.6-28Reference

13-26Reference

Ag front

8.00-16Reference

7.50-18Reference

Ag rear

13.6-28Reference

15-26Reference

Length

325 cmReference

314 cmReference

Width

166 cmReference

18 cmReference

Height (hood)

157 cmReference

144 cmReference

Height (ROPS)

246 cmReference

—

Max Drawbar

500 kgReference

—

AR Width

—

184 cmReference

AO Width

—

192 cmReference

Rear axle

—

69 mmReference

Rear tread

—

138 to 148 cmReference

AR Shipping

—

2378 kgReference

AO Shipping

—

2495 kgReference

Operating

—

2540 kgReference

Ballasted

—

3341 kgReference

John Deere 4120 attachments

Electrical

Ground

negativeReference

positiveReference

Charging system

alternatorReference

generatorReference

Charging amps

75Reference

—

Battery CCA

770Reference

—

Battery volts

12Reference

6Reference

Total cold cranking amps

770 ccaReference

—

Batteries

—

2Reference

Attachment overview

72" Mower deck

Cutting width

182 cmReference

—

Overall width

215 cmReference

—

Cut height

2 to 24 cmReference

—

John Deere 485 Backhoe

Backhoe type

John Deere 485 BackhoeReference

—

Transport height

228 cmReference

—

Digging depth

266 cmReference

—

Reach from pivot

360 cmReference

—

Loading height

223 cmReference

—

Bucket Rotation

180°Reference

—

Swing Arc

180°Reference

—

Bucket force

1691 kgReference

—

Dipperstick force

1104 kgReference

—

Speeds

General

Make & Model

John DeereReference

—

Cruise control

StandardReference

—

Country of manufacturer

USAReference

—

Power

Max Power

43.1 hpReference

—

PTO

PTO Power

35 hpReference

—

Rear PTO Power

AvailableReference

—

Rear PTO RPM

540 RPMReference

—

Mid PTO RPM

2,100 RPMReference

—

Hydraulics

Pump Rated Output (total)

17.1 gpmReference

—

Hydraulics Type

Open CenterReference

—

Maximum operating pressure

2,500 psiReference

—

Steering & Implements flow

5.1 gpm (12 gpm)Reference

—

Rear Hitch category (SAE designation)

Category IReference

—

Rear Hitch maximum lift capacity

1,419.7 kgReference

—

Dimensions & weight

Height Over ROPS

246.9 cmReference

—

Overall Length

325.6 cmReference

—

Overall weight

1,678.3 kgReference

—

Wheels & tyres

Rear Wheel Type

13.6-28Reference

—

Front Wheel Type

8.00-16Reference

—

Operator station

Seat Suspension

TRUEReference

—

Steering & brakes

Steering type

Hydrostatic PowerReference

—

AR Serial Numbers

1935

—

250000 (Unstyled)Reference

1936

—

251486 (Unstyled)Reference

1937

—

253521 (Unstyled)Reference

1938

—

255416 (Unstyled)Reference

1939

—

256700 (Unstyled)Reference

1940

—

257647 (Unstyled)Reference

1941

—

260000 (Unstyled)Reference

1942

—

261125 (Unstyled)Reference

1943

—

262157 (Unstyled)Reference

1944

—

262755 (Unstyled)Reference

1945

—

264198 (Unstyled)Reference

1946

—

265535 (Unstyled)Reference

1947

—

266643 (Unstyled)Reference

1948

—

268410 (Unstyled)Reference

1949

—

270131 (Unstyled)Reference

1950

—

272000 (Styled)Reference

1951

—

275938 (Styled)Reference

1952

—

278700 (Styled)Reference

1953

—

282351 (Styled)Reference

Final

—

284074 (Styled)Reference

Test results

Belt fuel use (max)

—

13.2 l/hourReference

Max pull

—

1983 kgReference

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.