Tractor · 1934Unverified
McCormick-Deering O-12
McCormick-Deering O-12 — Orchard/Vineyard tractor · 19 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
19 hp
Weight
1451 kg
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Overview
ManufacturerMcCormick-Deering (a part of International Harvester)Reference
Orchard/Vineyard tractorReference
Built in Chicago, Illinois, USAReference
Two-wheel driveReference
Manual steeringReference
Open operator station.Reference
Variants
F-12row-cropReference
W-12standardReference
O-12orchardReference
I-12industrialReference
Engine
International Harvester 1.9L 4-cyl distillateReference
Fuel tank41.6 LReference
Aux. fuel2.8 LReference
Belt (claimed)14.1 kWReference
International HarvesterReference
distillateReference
4-cylinderReference
liquid-cooled vertical I-headReference
Displacement1.9 LReference
Bore/Stroke76 x 102 mmReference
Air cleaneroil bathReference
Rated RPM1700Reference
Firing order1-3-4-2Reference
Coolant capacity13.2 LReference
Transmission
3-speed unsynchronized gearReference
Typeunsynchronized gearReference
Gears3 forward and 1 reverseReference
Clutchdry discReference
PTO & Hydraulics
Rear PTO Type540Reference
Dimensions
Weight1451 kgReference
Front tire6.00-9Reference
Rear tire9.00-24Reference
Ag front6.00-9Reference
Ag rear9.00-24Reference
Length261 cmReference
Width127 cmReference
Height (steering wheel)132 cmReference
Shipping weight1451 kgReference
Front tread100 cmReference
Rear tread102 cmReference
O-12 Serial Numbers
1933OS-501Reference
1934OS-512Reference
1935OS-1164Reference
1936OS-1771Reference
1937OS-2443Reference
1938OS-3261Reference
FAQ: How to read a serial number table.Reference
Capacities
Diameter33 cmReference
Width15 cmReference
RPM748Reference
Speed790.35 meters/minReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.