Introduction
International Harvester TD-8 Agricultural Crawler
The International Harvester TD-8 is an agricultural crawler tractor produced in Doncaster, England, between 1966 and 1975. Part of the BTD-8 series lineage, this machine was engineered for heavy-duty traction tasks requiring stability and high pulling power in challenging terrain.
Engine and Performance
The tractor is powered by the International Harvester BD-281, a 4.6-liter, 4-cylinder liquid-cooled diesel engine. It generates a gross power output of 62.5 hp (46.6 kW) at a rated speed of 1600 RPM. The engine provides 220 lb-ft (298.3 Nm) of torque at 1200 RPM, ensuring steady performance under load. The cooling system has a capacity of 25.8 quarts (24.4 L).
Transmission and Drivetrain
The drivetrain features a gear-type transmission providing 5 forward speeds and 1 reverse speed, controlled by a 330mm dry disc clutch. Power is transferred to the tracks via planetary final drives, a configuration chosen for its durability and torque management capabilities in crawler applications.
Physical Characteristics
With an operating weight of 11,500 lbs (5,216 kg), the TD-8 provides the necessary ground pressure distribution for agricultural operations. It is equipped with 14-inch tracks and features an open operator station design, typical of the era, prioritizing visibility and accessibility for the operator.
Conclusion
The International Harvester TD-8 is a robust crawler tractor suited for demanding agricultural applications such as heavy cultivation, clearing, and land development. Its mechanical simplicity and high torque output make it a reliable choice for operations requiring consistent traction on uneven or soft ground.
Production Information of International Harvester, TD-8
- Agricultural Crawler tractor
- Built in Doncaster, England
| Manufacturer | International Harvester |
|---|---|
| Total built | 2432 |
Engine Specifications of International Harvester, TD-8
- International Harvester BD-281
- Liquid-cooled
- Diesel
- 4-cylinder
| Coolant capacity | 25.8 qts [24.4 L] |
|---|---|
| Power (gross) | 62.5 hp [46.6 kW] |
| Rated RPM | 1600 |
| Torque RPM | 1200 |
| Torque | 220 lb-ft [298.3 Nm] |
| Displacement | 281 ci [4.6 L] |
| Power (net) | 58 hp [43.3 kW] |
| Bore/Stroke | 4.125x5.25 inches [105 x 133 mm] |
| Oil capacity | 9.6 qts [9.1 L] |
| Starter volts | 12 |
| Starter | Electric |
Transmission Information of International Harvester, TD-8
Transmission variants 1
| Type | Gear |
|---|---|
| Oil capacity | 14.4 qts [13.6 L] |
| Gears | 5 forward and 1 reverse |
| Clutch | 330mm dry disc |
Mechanical Specs of International Harvester, TD-8
- Open operator station
| Drive | Crawler |
|---|---|
| Final drives | Planetary |
Power Information of International Harvester, TD-8
| Engine (gross) | 62.5 hp [46.6 kW] |
|---|---|
| Belt (claimed) | 55.6 hp [41.5 kW] |
| Engine (net) | 58 hp [43.3 kW] |
| Drawbar (claimed) | 52.1 hp [38.9 kW] |
Electrical System of International Harvester, TD-8
| Charging system | Generator |
|---|
Where it sits
With 62 HP, the International Harvester TD-8 sits just above BTD-8 (60 HP) in International Harvester's range. Its power puts it in the 66th percentile of 1960s models in our database (709 machines).
Frequently asked questions
How much horsepower does the International Harvester TD-8 have?
The International Harvester TD-8 delivers 62 HP.
What years was the International Harvester TD-8 produced?
The International Harvester TD-8 was produced in 1966-1975.
What engine does the International Harvester TD-8 have?
The International Harvester TD-8 is powered by a Diesel, 4-cylinder engine.
What transmission does the International Harvester TD-8 use?
The International Harvester TD-8 uses a Gear transmission.