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Tractor · 1940Unverified

McCormick-Deering O-4

Name: McCormick-Deering O-4
Brand: McCormick-Deering

McCormick-Deering O-4 — Orchard/Vineyard tractor · 24 hp. Reference specifications; pending source verification.

The McCormick-Deering O-4 is a tractor with a rated power output of 24 hp, categorising it as a lighter tractor in its class. Production of the model spanned from 1940 to 1953. The tractor features a 4-cylinder petrol liquid-cooled engine and two-wheel drive with a 5-speed gearbox. Its operating weight is listed as 1959 kg, suitable for operations on up to 200 ac.

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

Catalogue coverage

Variants represented

Richest spec table

61 rows

Recorded power

24 hp

Recorded weight

1959 kg

Transmissions

5-speed gear

Production years

1940-1953

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

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.

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