John Deere 20A
The John Deere 20A is a tractor produced by John Deere. It is equipped with a 58.2 ci 1.0 L engine. The listed engine power is Diesel (listed): 21 hp / 15.7 kW. Transmission: 6 forward and 3 reverse. Operating weight: 1,654 lbs 750 kg.
Engine Power
Diesel (listed): 21 hp / 15.7 kW
Fuel & Capacities
6 gal
22.7 L
Transmission
6 forward and 3 reverse
Operating Weight
1,654 lbs
750 kg
Overview
 | 2008 - 2011
Orchard/Vineyard tractorGoldoni built
Orchard/Vineyard tractor
Goldoni built |
|---|
Production | |
|---|---|
Distributor | John Deere |
Manufacturer | Goldoni |
Orchard/Vineyard tractor | |
Built in Italy | |
John Deere 20A Engine | |
|---|---|
Lombardini 1.0L 2-cyl diesel | |
Engine details ...  |
John Deere 20A Transmission | |
|---|---|
6-speed gear | |
Transmission details ...  |
John Deere 20A Power | |
|---|---|
Engine | 21 hp
15.7 kW |
PTO (claimed) | 17 hp
12.7 kW |
Mechanical | |
|---|---|
Four-wheel drive | |
Steering | hydrostatic power |
Hydraulic wet disc brakes | |
Two-post ROPS. | |
Capacity | |
|---|---|
Fuel | 6 gal
22.7 L |
Hydraulic system | 1.7 gal
6.4 L |
Hydraulics | |
|---|---|
Type | open center |
Capacity | 1.7 gal
6.4 L |
Pressure | 1813 psi
125.0 bar |
Total flow | 9 gpm
34.1 lpm |
Steering press. | 1305 psi
90.0 bar |
Tractor hitch | |
|---|---|
Rear Type | 1/1N |
Rear lift | 1,100 lbs
498 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540 |
Dimensions & Tires | |
|---|---|
Wheelbase | 39.3 inches
99 cm |
Weight | 1,654 lbs
750 kg |
Front tire | 6.5/80x15 |
Rear tire | 6.5/80x15 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Charging amps | 14 |
Battery volts | 12 |
Battery AH | 45 |
References | |
|---|---|
 | |
Milenio 20A, 40A Y 40R published in 2003, by John Deere | |
Serie Milenio published in 2010, by John Deere | |
Specialty Tractors published in 2008, by John Deere |
Engine
Engine Detail — 58.2 ci / 1.0 L Diesel
Manufacturer | Lombardini 12LD475-2 |
Fuel Type | Diesel |
Configuration | 2-cylinder, air-cooled |
Displacement | 58.2 ci
1.0 L |
Bore/Stroke | 3.54x2.95 inches
90 x 75 mm |
Power | 21 hp
15.7 kW |
Rated RPM | 3000 |
Torque | 53 lb-ft
71.9 Nm |
Torque RPM | 2300 |
Firing order | 1-2 |
Starter volts | 12 |
Intake valve clearance | 0.06 inches
1.524 mm |
Exhaust valve clearance | 0.06 inches
1.524 mm |
Oil capacity | 3.17 qts
3.0 L |
Transmission
Transmission — 6 forward and 3 reverse gear
Type | gear |
Gears | 6 forward and 3 reverse |
Oil capacity | 6.34 qts
6.0 L |
Two levers control the transmission. The left-side range lever selects low, high, or reverse. The right-side gear lever selects one of three gears. Tractor must be stopped and clutch used to shift either range or gears. | |
With 6.5/80x15 tires. | |
 | |
Dimensions
John Deere 20A Tires | |
|---|---|
Ag front | 6.5/80x15 |
Ag rear | 6.5/80x15 |
Dimensions | |
|---|---|
Wheelbase | 39.3 inches
99 cm |
Length | 98 inches
248 cm |
Width | 32 inches
81 cm |
Height | 40 inches
101 cm |
Shipping weight | 1,654 lbs
750 kg |
Ground clearance | 9.25 inches (front axle)
23 cm |
Recommended Implements & Sizing Guide
Engineering recommendations for John Deere 20A based on its 21 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 1 to 2 Bottom (12")1 - 2 铧 (30 cm) | Light Duty | Ideal for garden plots and light sandy soil. |
Rotary Cutter / MowerMowing & Clearing | 4 ft (48 in)1.2 m | Light Duty | Pasture clipping and light brush under 1" diameter. |
Rotary TillerSeedbed Prep | 42 to 48 in105 - 120 cm | Light Duty | Covers compact tractor tire width. |
Disc HarrowSecondary Tillage | 5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片) | Light Duty | Small acreage soil break-up and secondary aeration. |
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 20A.
Estimated Continuous Field Runtime: 5.5 hrs
Approximately 5.5 hours of continuous field operation at ~75% rated power on a full tank (6 gal / 22.7 L).
Estimated 75% Load Fuel Burn~1.1 gal/hr (4.1 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 20A Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for John Deere 20A.
Converted Equivalents:
Horsepower (HP)21 hp
Kilowatts (kW)15.7 kW
Metric Horsepower (PS / CV)21.3 PS
Direct Competitor Comparison
Compare John Deere 20A against same-era industry alternatives in the same horsepower class.
Current Model
John Deere
John Deere 20A
Engine Power:Diesel (listed): 21 hp / 15.7 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester D-219
Engine Power:19
Production Years:1962 - 1966
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