International Harvester T-9

Last Updated: July 2024

Overview

The International Harvester T-9 tractor is a vintage machine powered by a 4-cylinder, International Harvester gasoline engine. Its liquid-cooled engine operates with a displacement of 334.5 ci and is configured with a vertical I-head orientation featuring an engine rated RPM of 1400. The tractor is equipped with a manual gear transmission, including 5 forward and 1 reverse gear. It has a maximum belt horsepower of 46.46 HP and a maximum drawbar horsepower of 40.59 HP. The tractor uses 72 octane gasoline and S.A.E. No. 30 oil. Measuring 114 inches in length, 75.1 inches in width, and 66.5 inches in height, the T-9 has a substantial presence. It maintains an operating weight of 10700 pounds, built to handle rigorous farm work. It was known for its robust design and versatility in a range of agricultural tasks during its years of production.

Key Specifications

Transmission: Gear

Operating Weight: 10700

Fuel Type: Gasoline

Image Gallery

International Harvester T-9 Tractor

Technical Specifications

Engine

Manufacturer: International Harvester
Model: -
Cooling Type: Liquid-cooled
Cylinder Orientation: Vertical I-head
Valve Configuration: -
Fuel Type: Gasoline
Induction Type: Naturally aspirated
Cylinders: 4
Displacement (ci): 334.5
Bore (in): 4.4
Stroke (in): 5.5
Rated RPM: 1400
Power Output (hp): -

Transmission

Type: Gear
Forward Gears: 5
Reverse Gears: 1
Total Gears: -

Dimensions

Length (in): 114
Width (in): 75.1
Height (in): 66.5
Operating Weight (lb): 10700

Power Take-Off (PTO)

PTO Type: -
PTO Speed 1 (rpm): -
PTO Speed 2 (rpm): -
PTO Speed 3 (rpm): -

Miscellaneous

Chassis: -
Drive Type: -
Steering Type: -
Coolant Capacity (qts): 48
Front Tire Diameter (in): -
Front Tire Width (in): -
Rear Tire Diameter (in): -
Rear Tire Width (in): -
Front/Rear Rim Diameter (in): -
Tire Type: -
Manufacture - End Year: -
Hitch Type: -
Hitch Category: -
Hitch Position: -
Hitch Capacity (lb): -
Operator Station Type: -
Starter Type: -
Brake Type: -
Hydraulic System Type: -

Test Results

Nebraska Tractor Test Laboratory - Test Date: May 27 to June 18, 1941

Maximum Power and Fuel Consumption

Maximum Power: 46.46 HP at 1400 rpm
Fuel Consumption at Maximum Power: 3.217 Gal/hr with a fuel efficiency of 0.749 lb/hp-hr

Drawbar Performance

Power at Rated Engine Speed (Second Gear): 40.59 HP with a drawbar pull of 2182 lbs and a speed of 3.26 mph

Torque and Engine Performance

Maximum Torque Rise: Not specifically measured in this test
Rated Engine Speed: 1400 rpm

Hydraulic Performance

Maximum Force Exerted: Not applicable for this test
Pump Delivery Rate: Not applicable for this test

Overall Efficiency

Fuel Efficiency at Standard PTO Speed: Not provided
Fuel Consumption (10-hour test at varying loads): 3.547 Gal/hr at 1400 rpm

Recommended Citation Format

Nebraska Tractor Test Lab. (1941). Test 372: International Tractor Model T-9 (Gasoline) (Wide Tread). University of Nebraska-Lincoln. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/959