Tractor · 1940Unverified
McCormick-Deering O-4
McCormick-Deering O-4 — Orchard/Vineyard tractor · 24 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
24 hp
Weight
1959 kg
Hover a source tag to verify
Overview
ManufacturerMcCormick-DeeringReference
Orchard/Vineyard tractorReference
Built in Rock Island, Illinois, USAReference
Total built2,721Reference
Two-wheel driveReference
Manual steeringReference
Open operator stationReference
Variants
W-4standardReference
O-4orchardReference
OS-4orchard, without full sheet metalReference
Engine
International Harvester 2.5L 4-cyl gasolineReference
Fuel tank66.2 LReference
Aux. fuel2.8 LReference
Belt (claimed)17.9 kWReference
Belt (claimed)20.5 kWReference
International HarvesterReference
gasolineReference
4-cylinderReference
liquid-cooledReference
Displacement2.5 LReference
Bore/Stroke86 x 113 mmReference
Compression5.9:1 (high-compression gasoline)Reference
Compression4.75:1 (gasoline-distillate)Reference
Compression4.5:1 (kerosene)Reference
Rated RPM1650Reference
Firing order1-3-4-2Reference
Oil capacity5.7 LReference
Transmission
5-speed gearReference
TypegearReference
Gears5 forward and 1 reverseReference
PTO & Hydraulics
Rear PTO Type540Reference
Dimensions
Wheelbase169 cmReference
Weight1959 kgReference
Front tire5.50-16Reference
Rear tire12-26Reference
Ag front5.50-16Reference
Ag rear12-26Reference
Length307 cmReference
Width153 cmReference
Height153 cmReference
Shipping weight1959 kgReference
O-4 Serial Numbers
Location:Left side of tractor, on clutch housing.Reference
1940OBH501Reference
1941OBH943Reference
1942OBH4056Reference
1943OBH5693Reference
1944OBH7593Reference
1945OBH11171Reference
1946OBH13934Reference
1947OBH16022Reference
1948OBH18880Reference
1949OBH21912Reference
1950OBH24470Reference
1951OBH28167Reference
1952OBH31214Reference
1953OBH33067Reference
FAQ: How to read a serial number table.Reference
Capacities
Diameter24 cmReference
Width19 cmReference
RPM1019Reference
Speed792.78 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.