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John Deere 20A vs John Deere AR Unstyled

Verdict: John Deere 20A vs John Deere AR Unstyled

The John Deere 20A and the John Deere AR Unstyled are both tractors — here is how they stack up on the figures that matter. John Deere AR Unstyled leads on rated power with 18 hp against 17 hp. John Deere 20A is the lighter machine (750 kg vs 2,154 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 20A is the newer design (2008 vs 1935). In short: choose the John Deere AR Unstyled for outright pulling power, or the John Deere 20A 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 20A Tractor
John Deere
71
Fit score
Best match
Clear
John Deere AR Unstyled Tractor
John Deere
71
Fit score
Best match
Clear
Rated power
17 hp
18 hp
Confidence
98%
98%
Guide price
Overview
Distributor
John DeereReference
Manufacturer
GoldoniReference
John DeereReference
With 6.5/80x15 tires.Reference
Gear 1 used for pull test.Reference
Steering
hydrostatic powerReference
AR Total built
17,394Reference
AO Total built
2,686Reference
Engine
Engine
15.7 kWReference
Displacement
1.0 LReference
5.3 LReference
Bore/Stroke
90 x 75 mmReference
140 x 171 mmReference
Power
15.7 kWReference
Rated RPM
3000Reference
975Reference
Torque
71.9 NmReference
Torque RPM
2300Reference
Firing order
1-2Reference
1-2Reference
Starter volts
12Reference
Intake valve clearance
1.524 mmReference
Exhaust valve clearance
1.524 mmReference
Oil capacity
6.0 LReference
10.4 LReference
Fuel Type
dieselReference
No of Cylinders
2 cylinderReference
Rated engine speed
3,000 RPMReference
Engine torque at rated speed
24 kgReference
Bore and stroke
3.54x2.95 inchesReference
Cooling system
air-cooledReference
thermo-siphonReference
Drawbar (claimed)
13.4 kWReference
Belt (claimed)
17.9 kWReference
Plows
2Reference
Drawbar (tested)
19.8 kWReference
Belt (tested)
22.6 kWReference
Air cleaner
oil bathReference
Compression
4.45:1Reference
Coolant capacity
30.3 LReference
Sparkplug gap
0.762 mmReference
Belt power (max)
22.6 kWReference
Max power
19.8 kWReference
Transmission
Gears
6 forward and 3 reverseReference
4 forward and 1 reverseReference
Transmission Type
GearReference
forward and reverse options
Gear - 6F and 3RReference
Wheel Drive
4 WDReference
Transmission
John DeereReference
Clutch
dry discReference
PTO & Hydraulics
PTO (claimed)
12.7 kWReference
Hydraulic system
6.4 LReference
7.9 LReference
Type
gearReference
unsynchronized gearReference
Capacity
6.4 LReference
7.9 LReference
Pressure
125.0 barReference
Total flow
34.1 lpmReference
Steering press.
90.0 barReference
Rear Type
1/1NReference
Rear lift
498 kgReference
Rear PTO
independentReference
transmissionReference
Rear PTO Type
540Reference
540Reference
Valves
1Reference
Pump flow
33.7 lpmReference
Capacities
Fuel
22.7 LReference
60.6 LReference
Fuel tank
22.7 LReference
Crankcase oil volume
3.17 qtsReference
Aux. fuel
3.8 LReference
Diameter
32 cmReference
RPM
975Reference
Speed
996.70 meters/minReference
Dimensions
Wheelbase
99 cmReference
Weight
750 kgReference
2154 kgReference
Front tire
6.5/80x15Reference
28x6Reference
Rear tire
6.5/80x15Reference
42.75x10Reference
Ag front
6.5/80x15Reference
6.00-16Reference
Ag rear
6.5/80x15Reference
12-26Reference
Length
248 cmReference
314 cmReference
Width
81 cmReference
162 cmReference
Height
101 cmReference
Shipping weight
750 kgReference
Ground clearance
23 cmReference
Height (hood)
139 cmReference
Operating weight
2154 kgReference
Ballasted weight
2880 kgReference
Rear axle
69 mmReference
Front tread
121 cmReference
Rear tread
131 cmReference
20A Serial Numbers
Location:
On the left-front, just ahead of the front tire, behind the muffler.Reference
Electrical
Ground
negativeReference
positiveReference
Charging system
alternatorReference
Charging amps
14Reference
Battery volts
12Reference
6Reference
Battery AH
45Reference
Speeds
General
Make & Model
GoldoniReference
Rollover protective structure
Two-post ROPS.Reference
Country of manufacturer
ItalyReference
Power
Max Power
21 hpReference
PTO
PTO Power
17 hpReference
Rear PTO Power
AvailableReference
Rear PTO RPM
540 RPMReference
Steering & brakes
Brakes
Hydraulic Wet DiscReference
Steering type
Hydrostatic PowerReference
Hydraulics
Pump Rated Output (total)
9 gpmReference
Hydraulics Type
Open CenterReference
Maximum operating pressure
1,813 psiReference
Rear Hitch category (SAE designation)
Category 1/1NReference
Rear Hitch maximum lift capacity
499 kgReference
Dimensions & weight
Overall Height
101.6 cmReference
Overall Length
248.9 cmReference
Overall Width
81.3 cmReference
Overall weight
750.2 kgReference
Wheels & tyres
Rear Wheel Type
6.5/80x15Reference
Front Wheel Type
6.5/80x15Reference
Variants
A
Row-cropReference
AR
Standard front axleReference
AO
OrchardReference
AOS
narrow orchardReference
AW
Adjustable wide-frontReference
AN
Single front wheelReference
AH
High-cropReference
AR Serial Number Location
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)
11.7 l/hourReference
Max pull
1926 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.

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