Industrial Tractor · 1941Unverified
International Harvester I-9
International Harvester I-9 — Industrial tractor · 35 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
35 hp
Weight
2914 kg
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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.