Introduction
International Harvester TD-9 Crawler Tractor
The International Harvester TD-9 is an agricultural crawler tractor produced between 1939 and 1962. Manufactured in Melrose Park, Illinois, this model gained recognition for its durability, with over 59,800 units built during its extensive production run.
Engine and Performance
The tractor is powered by a 4-cylinder, liquid-cooled, vertical I-head diesel engine with a displacement of 334.5 cubic inches (5.5 L). It features a 15.7:1 compression ratio and operates at a rated speed of 1400 RPM. Air filtration is managed by an oil bath system, and the engine is supported by a 12-volt starter system.
Transmission and Drive
The TD-9 utilizes a mechanical crawler drive system. The transmission configuration consists of 5 forward gears and 1 reverse gear, coupled with a dry disc clutch. The transmission oil capacity is 20.8 liters, ensuring proper lubrication for the gear assembly.
Operational Features
Designed for agricultural versatility, the tractor includes a rear power take-off (PTO) operating at 540 RPM. Braking is handled by contracting band brakes. The operator station is of an open design, prioritizing visibility and accessibility for the driver.
Dimensions and Weight
The machine runs on 13-inch wide tracks, which provide the necessary traction for field operations. The total operating weight of the tractor ranges from 9,805 to 10,800 pounds, depending on the specific configuration and equipment fitted.
Conclusion
The International Harvester TD-9 is a robust crawler tractor suited for heavy-duty agricultural pulling and field work. Its mechanical simplicity and reliable diesel power plant have made it a significant model for both historical collections and practical agricultural applications.
Production Information of International Harvester, TD-9
- Agricultural Crawler tractor
- Built in Melrose Park, Illinois, USA
| Manufacturer | International Harvester |
|---|---|
| Total built | 59,800 |
Engine Specifications of International Harvester, TD-9
- Liquid-cooled vertical I-head
- Diesel
- 4-cylinder
| Oil capacity | 11 qts [10.4 L] |
|---|---|
| Starter volts | 12 |
| Starter volts(optional) | 51.5 hp (late) [38.4 kW] |
| Coolant capacity | 52 qts [49.2 L] |
| Compression | 15.7:1 |
| Rated RPM | 1400 |
| Air cleaner | Oil bath |
| Displacement | 334.5 ci [5.5 L] |
| Power | 49.5 hp (early) [36.9 kW] |
| Bore/Stroke | 4.40x5.50 inches [112 x 140 mm] |
| Firing order | 1-3-4-2 |
| Operating RPM | 900-1400 |
| Idle RPM | 500-1555 |
Transmission Information of International Harvester, TD-9
Transmission variants 1
| Type | Gear |
|---|---|
| Oil capacity | 22 qts [20.8 L] |
| Gears | 5 forward and 1 reverse |
| Clutch | Dry disc |
Mechanical Specs of International Harvester, TD-9
- Contracting band brakes
- Open operator station.
| Drive | Crawler |
|---|
Power Information of International Harvester, TD-9
| Rear PTO Type | 540 (1.375) |
|---|
Where it sits
With 51 HP, the International Harvester TD-9 sits between Titan D 45HP (50 HP) and 523 (52 HP) in International Harvester's range. Its power puts it in the 81th percentile of 1930s models in our database (235 machines).
Frequently asked questions
How much horsepower does the International Harvester TD-9 have?
The International Harvester TD-9 delivers 51 HP.
What years was the International Harvester TD-9 produced?
The International Harvester TD-9 was produced in 1939-1962.
What engine does the International Harvester TD-9 have?
The International Harvester TD-9 is powered by a Diesel, 4-cylinder engine.
What transmission does the International Harvester TD-9 use?
The International Harvester TD-9 uses a Gear transmission.