Tractor · 1948Unverified
Ferguson TO-20
Ferguson TO-20 — Utility tractor · 21 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
21 hp
Max power
15.4 kW
Weight
1251 kg
Hover a source tag to verify
Overview
ManufacturerFergusonReference
Utility tractorReference
Built in Detroit, Michigan, USAReference
Two-wheel driveReference
Manual steeringReference
Differential mechanical expanding shoe (11x2 inch) brakesReference
Open operator station.Reference
Engine
Continental 2.0L 4-cyl gasolineReference
Fuel tank37.9 LReference
Drawbar (tested)15.4 kWReference
Belt (tested)18.9 kWReference
Continental Z-120Reference
gasolineReference
4-cylinder 8-valveReference
liquid-cooled inline overhead valveReference
Displacement2.0 LReference
Bore/Stroke81 x 95 mmReference
Fuel systemMarvel Schebler TSX updraft carburetorReference
Air cleaneroil bathReference
Compression6.1:1Reference
Rated RPM2200Reference
Torque119.3 NmReference
Torque RPM1200Reference
Firing order1-3-4-2Reference
Starter volts6Reference
Oil capacity5.7 LReference
Belt power (max)18.9 kWReference
Max power15.4 kWReference
Transmission
4-speed constant meshReference
Typeconstant meshReference
Gears4 forward and 1 reverseReference
Oil capacity17.0 LReference
Helical-cut gears.Reference
PTO & Hydraulics
Rear TypeIReference
Rear PTOtransmissionReference
Rear PTO Type540Reference
Dimensions
Wheelbase177 cmReference
Weight1251 kgReference
Front tire4.00-19Reference
Rear tire10-28Reference
Ag front4.00-19Reference
Ag rear10-28Reference
Ag front6.00-16Reference
Ag rear11-28Reference
Front tread123/134/146/157/168/180/191/203 cmReference
Rear tread121/132/142/152/162/172/182/193 cmReference
TO-20 Serial Number Location
Serial number plate above the TO-20's steering column.Reference
TO-20 Serial Numbers
1948TO-1Reference
1949TO-1808Reference
1950TO-14660Reference
1951TO-39163Reference
FinalTO-60000Reference
FAQ: How to read a serial number table.Reference
Electrical
GroundpositiveReference
Charging systemDelco-Remy 181674M91Reference
Charging amps25Reference
Charging volts6Reference
Battery volts6Reference
Test results
Gasoline 4-speed 2WDApril 26 - May 10, 1948Link: Nebraska Tractor Test 392 fileReference
Belt fuel use (max)9.5 l/hourReference
Drawbar performanceReference
Gear 2 used for power test.Reference
Max pull1202 kgReference
Gear 1 used for pull test.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.