Ferguson TO-20

Ferguson TO-20 Technical Specifications

Ferguson TO-20 is a Row-Crop tractor that was produced by the John Deere between 1948 – 1951.

Below you will find detailed technical specifications for Ferguson TO-20 covering engine types, horsepower ratings, weight, height, fuel type and tank volume, oil capacity and type, hydraulic system diagram, wiring diagram, battery specs, etc.

Ferguson TO-20 Production

Manufacturer: Ferguson
Type: Utility tractor
Factory: Detroit, Michigan, USA

Ferguson TO-20 Power

Drawbar (tested): 20.70 hp
15.4 kW
Belt (tested): 25.41 hp
18.9 kW

Ferguson TO-20 Electrical

Ground: positive
Charging system: Delco-Remy 181674M91
Charging amps: 25
Charging volts: 6
Battery volts: 6

Ferguson TO-20 Mechanical

Chassis: 4×2 2WD
Steering: manual
Brakes: differential mechanical expanding shoe (11×2 inch)
Cab: Open operator station.
Transmission: 4-speed

Power Take-off (PTO)

Rear PTO: transmission
Rear RPM: 540

Title serial numbers

Location: Serial number plate above the TO-20`s steering column.

photo of TO-20 serial number

1948: 1
1949: 1808
1950: 14660
1951: 39163
Final: 60000

how to read serial numbers…

What year is my Ferguson TO-20? Serial Number Decoder

The serial number list shows the first tractor built in each year. The other tractors for that year will have successively higher numbers. Your serial number should be between two of the stated numbers.

The list only includes the numbers of the first tractors produced in each year. Your serial should be somewhere between two numbers.Unless you happen to be the first person to own a tractor, your number will not appear on the list.

Ferguson TO-20 Engine detail

Engine Detail
Continental Z-120
4-cylinder 8-valve
liquid-cooled inline overhead valve
Displacement: 120 ci
2.0 L
Bore/Stroke: 3.1875×3.75 inches
81 x 95 mm
Fuel system: Marvel Schebler TSX updraft carburetor
Air cleaner: oil bath
Compression: 6.1:1
Rated RPM: 2200
Torque: 88 lb-ft
119.3 Nm
Torque RPM: 1200
Firing order: 1-3-4-2
Starter volts: 6

Ferguson TO-20 Transmission overview

Engine Oil

Transmission: constant mesh
Gears: 4 forward and 1 reverse
Oil capacity: 18 qts
17.0 L
Helical-cut gears.

Ferguson TO-20 Dimensions

Wheelbase: 70 inches
177 cm
Weight: 2,760 lbs
1251 kg
Front tread: 48.5/53/57.5/62/66.5/71/75.5/80 inches
123/134/146/157/168/180/191/203 cm
Rear tread: 48/52/56/60/64/68/72/76 inches
121/132/142/152/162/172/182/193 cm

Ferguson TO-20 Tests

Nebraska Tractor Test 392

Nebraska Tractor Test 392
Gasoline 4-speed 2WD
April 26 – May 10, 1948
Link: Nebraska Tractor Test 392 file
Belt power (max): 25.41 hp
18.9 kW
Belt fuel use (max): 2.5 gal/hour
9.5 l/hour
Drawbar performance
Max power: 20.70 hp
15.4 kW
Gear 2 used for power test.
Max pull: 2,650 lbs
1202 kg
Gear 1 used for pull test.


Is Ferguson TO-20 a good tractor?

The Ferguson TO-20 is one of the great tractors in the Ferguson stable, and it has earned Ferguson a fantastic reputation.

How much oil does a Ferguson TO-20 take?

Check out the Ferguson TO-20 oil capacity and oil type in the engine specs section as it may vary across the engines. Keep in mind, that older models might have their oil capacity increased over time. You may compare between the early and late oil capacity.

Do tractors have VIN numbers?

Every tractor has a VIN number. The number is usually engraved below the driver’s seat. Tractor manufacturers put the number in different places on the tractor body.

What was the last year Ferguson made the TO-20?

The Ferguson TO-20 was an agricultural tractor model made from 1948 – 1951

Where is the serial number on a Ferguson TO-20?

Lookup serial number plate above the to-20`s steering column.

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