Ferguson TO-20 Tractor

Manufacturer Ferguson
Price -
Model TO-20
Equipment Type Utility Tractors
Factory Detroit, Michigan, USA

NEBRASKA TRACTOR TEST 392 2

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

FERGUSON TO-20 POWER

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

ENGINE DETAIL

The Ferguson TO-20 is equipped with a Continental Z-120 engine, optimized for applications requiring moderate power and torque, with a 6.1:1 compression ratio that fosters efficient combustion at its rated 2200 RPM. The Marvel Schebler TSX updraft carburetor and oil bath air cleaner enhance air-fuel mixture quality and engine longevity, providing reliable performance but necessitating regular maintenance to avoid clogging. Its 88 lb-ft torque at 1200 RPM makes it suitable for tasks in agricultural environments where lower RPM operations, like plowing, are common, though limited power output may challenge heavier implement usage.

Description Continental Z-120 gasoline 4-cylinder 8-valve liquid-cooled inline overhead valve
Displacement 120ci / 2.0L
Bore/Stroke 3.1875x3.75inches / 81 x 95mm
Fuel system Marvel Schebler TSX updraft carburetor
Air cleaner oil bath
Compression 6.1:1
Rated RPM 2200
Torque 88lb-ft / 119.3Nm
Torque RPM 1200
Firing order 1-3-4-2
Starter volts 6

ENGINE OIL

The Ferguson TO-20 has an oil capacity of 6 quarts (5.7 liters), which is moderate for a tractor of its size, allowing for good lubrication and heat dissipation in the engine. Ensure regular oil changes to maintain optimal engine performance and prevent wear. A downside to consider is that during heavy use, frequent top-ups may be necessary, especially if there are oil leaks or consumption issues.

Oil capacity 6qts / 5.7L

FERGUSON TO-20 ENGINE

The Ferguson TO-20, powered by a Continental 2.0L 4-cylinder gasoline engine, offers a balanced power-to-weight ratio suitable for light to moderate agricultural tasks. With a fuel tank capacity of 10 gallons (37.9 liters), it supports extended operational periods before refueling, making it efficient for larger plots. However, the vintage design may present challenges in parts availability and modern compatibility enhancements.

Description Continental 2.0L 4-cyl gasoline
Fuel tank 10gal / 37.9L

TRANSMISSION

The Ferguson TO-20 features a constant mesh transmission with helical-cut gears, ensuring smoother operation and reduced noise levels compared to straight-cut gears. It offers 4 forward and 1 reverse gear, suitable for a variety of tasks from farming to light industrial applications, though the limited number of gears may challenge its adaptability in more demanding scenarios. With an oil capacity of 18 quarts (17.0L), regular maintenance is crucial for optimal performance and longevity, necessitating periodic checks to prevent potential overheating or gear wear.

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

MECHANICAL

The Ferguson TO-20 features a 4x2 2WD chassis which limits traction on uneven terrain, making it ideal for flat, dry fields. Its manual steering provides direct feedback but may require more effort during extended use, especially in tight maneuvers. The differential mechanical brakes (11x2 inch) offer decent stopping power, although they may require more maintenance and attention compared to modern hydraulic systems, especially under heavy loads.

Chassis 4x2 2WD
Steering manual
Brakes differential mechanical expanding shoe (11x2 inch)
Cab Open operator station
Transmission 4-speed

POWER TAKE-OFF (PTO)

Rear PTO transmission
Rear RPM 540

FERGUSON TO-20 TIRES

The Ferguson TO-20 tractor features 6.00-16-inch Ag front tires, enhancing maneuverability for tight spaces, while the 11-28-inch Ag rear tires provide improved traction for heavier loads on uneven terrain. This tire combination supports optimal weight distribution, making it suitable for various agricultural applications. However, its older design may limit compatibility with modern implements, necessitating careful selection to avoid potential performance challenges.

Ag front 6.00-16
Ag rear 11-28

DIMENSIONS

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

DIMENSIONS & TIRES

The Ferguson TO-20's 70-inch wheelbase provides enhanced maneuverability in tight spaces, making it suitable for small to medium-scale farming applications or landscaping. Weighing 2,760 lbs, it offers good stability and traction; however, its relatively narrow tire specifications (4.00-19 front and 10-28 rear) may limit performance in soft or muddy terrains. This tractor’s design is effective for light-duty tasks but may struggle with heavy-load operations compared to more robust models.

Wheelbase 70inches / 177cm
Weight 2,760lbs / 1251kg
Front tire 4.00-19
Rear tire 10-28

TO-20 SERIAL NUMBERS

Location Serial number plate above the TO-20's steering column
1948 1
1949 1808
1950 14660
1951 39163
Final 60000

ELECTRICAL

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


Last Updated 2025-01-01
Stephen is a passionate tractor hobbyist with a deep-seated love for all things mechanized and agricultural. Growing up in a rural setting, he developed a fascination with these mighty machines that have played a crucial role in shaping the farming industry.

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