Introduction
Oliver OC-4 Agricultural Crawler Tractor
The Oliver OC-4 is a tracked agricultural tractor produced in Cleveland, Ohio, between 1957 and 1965. Designed for versatility in varied field conditions, this crawler model is recognized for its compact design and mechanical robustness.
Engine Specifications
The tractor is powered by a liquid-cooled, 3-cylinder Hercules GTO130 gasoline engine. With a displacement of 130 cubic inches (2.1 liters), it produces 30.20 horsepower (22.5 kW) at a rated speed of 1700 RPM. The engine features a vertical I-head design, a compression ratio of 6.5:1, and generates 97 lb-ft (131.5 Nm) of torque at 1400 RPM. It utilizes an oil bath air cleaner for engine protection.
Transmission and Drivetrain
The OC-4 utilizes a gear-type transmission providing 4 forward speeds and 1 reverse speed. Power is transferred to the drivetrain through a dry disc clutch. As a crawler model, it operates on tracks, specifically 10-inch wide tracks, which provide the necessary traction and surface area for agricultural operations.
Capacities and Operation
The tractor is equipped with a rear power take-off (PTO) operating at 540 RPM with a 1.375-inch shaft diameter. Fluid capacities include 12 quarts (11.4 L) for the cooling system and 5.75 quarts (5.4 L) for oil. The electrical system is powered by a 6-volt starter.
Dimensions and Weight
The machine operates within a weight range of 4,720 to 5,000 pounds. This mass, combined with the track configuration, ensures stability and consistent performance across diverse terrain types.
Conclusion
The Oliver OC-4 is suited for agricultural tasks requiring the specific traction advantages of a crawler tractor. Its mechanical simplicity and reliable engine output make it a functional machine for field operations that demand stability and consistent power delivery.
Production Information of Oliver, OC-4
- Agricultural Crawler tractor
- Built in Cleveland, Ohio, USA
| Manufacturer | Oliver |
|---|
Engine Specifications of Oliver, OC-4
- Herclues GTO130
- Liquid-cooled vertical I-head
- Gasoline
- 3-cylinder
| Coolant capacity | 12 qts [11.4 L] |
|---|---|
| Air cleaner | Oil bath |
| Compression | 6.5:1 |
| Torque | 97 lb-ft [131.5 Nm] |
| Rated RPM | 1700 |
| Displacement | 130 ci [2.1 L] |
| Power | 30.20 hp [22.5 kW] |
| Bore/Stroke | 3.50x4.50 inches [89 x 114 mm] |
| Oil capacity | 5.75 qts [5.4 L] |
| Starter volts | 6 |
| Torque RPM | 1400 |
Transmission Information of Oliver, OC-4
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 4 forward and 1 reverse |
| Clutch | Dry disc |
Mechanical Specs of Oliver, OC-4
| Drive | Crawler |
|---|
Power Information of Oliver, OC-4
| Rear PTO Type | 540 (1.375) |
|---|
Where it sits
With 30 HP, the Oliver OC-4 sits between OC-3 (29 HP) and 440 (31 HP) in Oliver's range. Its power puts it in the 36th percentile of 1950s models in our database (592 machines).
Frequently asked questions
How much horsepower does the Oliver OC-4 have?
The Oliver OC-4 delivers 30 HP.
What years was the Oliver OC-4 produced?
The Oliver OC-4 was produced in 1957-1965.
What engine does the Oliver OC-4 have?
The Oliver OC-4 is powered by a Gasoline, 3-cylinder engine.
What transmission does the Oliver OC-4 use?
The Oliver OC-4 uses a Gear transmission.