Search/Industrial Tractor/International Harvester/I-9

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Industrial Tractor · 1941Unverified

International Harvester I-9

Name: International Harvester I-9
Brand: International Harvester

International Harvester I-9 — Industrial tractor · 35 hp. Reference specifications; pending source verification.

The International Harvester I-9 is an industrial tractor with a rated power output of 35 horsepower, positioning it at the lighter end of its class. It was produced from 1941 to 1953. The tractor is equipped with a 4-cylinder diesel liquid-cooled engine and two-wheel drive, mated to a 5-speed gearbox. Its listed operating weight is 2914 kg, suitable for operations of up to 200 acres.

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

Rated power

35 hp

Weight

2914 kg

Catalogue coverage

Variants represented

Richest spec table

52 rows

Recorded power

35 hp

Recorded weight

2914 kg

Transmissions

5-speed sliding gear

Production years

1941-1953

Verified variants

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

Hover a source tag to verify

Overview

ManufacturerInternational HarvesterReference

Industrial tractorReference

Built in Milwaukee, Wisconsin, USAReference

Total built67,418Reference

Original price$3,300Reference

The 9-series tractors consisted of six models, the W-9, WD-9, WR-9, WDR-9, I-9, and ID-9. The D models are diesel. The R is a rice model, with larger fenders and a hand-clutch to allow driving while standing. The I models were industrial, with different gear ratios and foot-operated throttle.Reference

Two-wheel driveReference

Steeringworm-type gearReference

Open operator station.Reference

Variants

I-9gasReference

ID-9dieselReference

W-9farm tractorReference

Engine

International Harvester 5.5L 4-cyl gasolineReference

Fuel tank136.3 LReference

Aux. fuel3.3 LReference

Drawbar (claimed)26.1 kWReference

Belt (claimed)33.6 kWReference

International HarvesterReference

gasolineReference

4-cylinderReference

liquid-cooled vertical I-headReference

The gasoline engine was standard on the I-9, and an option on the W-9 until 1947, when it became the standard engine.Reference

Displacement5.5 LReference

Bore/Stroke112 x 140 mmReference

Compression5.4:1Reference

Rated RPM1500Reference

Coolant capacity37.9 LReference

Transmission

5-speed sliding gearReference

Typesliding gearReference

Gears5 forward and 1 reverseReference

Dimensions

Weight2914 kgReference

Ag front7.50-18Reference

Ag rear14-32Reference

Length340 cmReference

Width173 cmReference

Height167 cmReference

I-9 Serial Numbers

1940501Reference

1941578Reference

19423003Reference

19433651Reference

19445501Reference

194511459Reference

194617294Reference

194722715Reference

194829207Reference

194936159Reference

195045551Reference

195151739Reference

195259407Reference

195364014Reference

195467969Reference

FAQ: How to read a serial number table.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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