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Tractor · 1934Unverified

Allis Chalmers K-O

Name: Allis Chalmers K-O
Brand: Allis Chalmers

Allis Chalmers K-O — Agricultural Crawler tractor · 50 hp. Reference specifications; pending source verification.

The Allis Chalmers K-O is a tractor with an approximate power output of 50 hp, categorising it as a lighter model in its class. It was manufactured from 1934 to 1943. The tractor is equipped with a 4-cylinder diesel liquid-cooled engine, paired with two-wheel drive and a 3-speed gearbox. It has an operating weight of 5216 kg and is suitable for operations covering up to 200 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

50 hp

Max power

37.6 kW

Weight

5216 kg

Catalogue coverage

Variants represented

Richest spec table

45 rows

Recorded power

50 hp

Recorded weight

5216 kg

Transmissions

3-speed gear

Production years

1934-1943

Verified variants

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

Hover a source tag to verify

Overview

ManufacturerAllis ChalmersReference

Agricultural Crawler tractorReference

Built in Springfield, Illinois, USAReference

DrivecrawlerReference

Open operator station.Reference

Variants

KgasolineReference

WKwide gasReference

K-OdieselReference

WK-Owide dieselReference

Engine

Allis Chalmers 9.2L 4-cyl dieselReference

Drawbar (tested)37.6 kWReference

Belt (tested)44.0 kWReference

Allis ChalmersReference

dieselReference

4-cylinderReference

liquid-cooledReference

The "Oil" engine in the Allis KO and WKO crawlers was a spark-ignition diesel-fuel engine.Reference

Displacement9.2 LReference

Bore/Stroke133 x 165 mmReference

Fuel systemmechanical injectionReference

Air cleaneroil bathReference

Compression6.5:1Reference

Rated RPM1050Reference

Belt power (max)44.0 kWReference

Max power37.6 kWReference

Transmission

3-speed gearReference

4-speed gearReference

TypegearReference

Gears3 forward and 1 reverseReference

The three-speed transmission was used on early models, built during 1934.Reference

Gears4 forward and 1 reverseReference

Dimensions

Weight5216 kgReference

15-inch tracksReference

Length303 cmReference

KO Width167 cmReference

Height (hood)162 cmReference

KO Gauge121 cmReference

WKO Gauge160 cmReference

Allis Chalmers K-O Tracks

Width38 cmReference

Test results

Diesel 4-speed 2WDAugust 26 - September 2, 1937Link: Nebraska Tractor Test 285 fileReference

Belt fuel use (max)17.4 l/hourReference

Drawbar performanceReference

Gear 1 used for power test.Reference

Max pull5300 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.

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