Introduction
Oliver OC-3 Crawler Tractor
The Oliver OC-3 is an agricultural crawler tractor produced between 1951 and 1957 in Cleveland, Ohio, USA. Serving as the direct successor to the Oliver HG series, this machine was designed to provide reliable traction for various field operations.
Engine and Performance
The tractor is powered by a liquid-cooled, 4-cylinder Hercules gasoline engine with a displacement of 133 cubic inches (2.2 L). It features an L-head design with a compression ratio of 6.67:1. The engine operates at a rated speed of 1700 RPM and is equipped with an electric starter. It provides a claimed drawbar power of 22 hp (16.4 kW) and a belt power of 26.5 hp (19.8 kW).
Transmission and Drive
The OC-3 utilizes a mechanical gear transmission system offering 3 forward speeds and 1 reverse speed. As a crawler tractor, it relies on 10-inch wide tracks to distribute its 3860 lbs (1750 kg) operating weight, ensuring stability and traction on uneven or soft agricultural terrain.
Operator Environment
The machine features an open operator station, a standard design for crawlers of this era, providing the operator with direct access and visibility for manual control during field tasks.
Conclusion
The Oliver OC-3 is a specialized agricultural crawler tractor suited for farming applications that require high flotation and steady drawbar pulling power. Its straightforward mechanical architecture reflects the engineering standards of the 1950s, prioritizing durability and ease of maintenance for field use.
Production Information of Oliver, OC-3
- The Oliver OC-3 was essentially the same as the HG it replaced.
- Agricultural Crawler tractor
- Built in Cleveland, Ohio, USA
| Manufacturer | Oliver |
|---|
Engine Specifications of Oliver, OC-3
- Hercules
- Liquid-cooled vertical L-head
- Gasoline
- 4-cylinder
| Compression | 6.67:1 |
|---|---|
| Displacement | 133 ci [2.2 L] |
| Rated RPM | 1700 |
| Bore/Stroke | 3.25x4.00 inches [83 x 102 mm] |
| Coolant capacity | 11 qts [10.4 L] |
| Starter type | Electric |
Transmission Information of Oliver, OC-3
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 3 forward and 1 reverse |
Mechanical Specs of Oliver, OC-3
- Open operator station.
| Drive | Crawler |
|---|
Power Information of Oliver, OC-3
| Drawbar (claimed) | 22 hp [16.4 kW] |
|---|---|
| Belt (claimed) | 26.5 hp [19.8 kW] |
Where it sits
With 29 hp[B] HP, the Oliver OC-3 sits between 66 (27 HP) and OC-4 (30 HP) in Oliver's range. Its power puts it in the 31th percentile of 1950s models in our database (592 machines).
Frequently asked questions
How much horsepower does the Oliver OC-3 have?
The Oliver OC-3 delivers 29 hp[B] HP.
What years was the Oliver OC-3 produced?
The Oliver OC-3 was produced in 1951-1957.
What engine does the Oliver OC-3 have?
The Oliver OC-3 is powered by a Gasoline, 4-cylinder engine.
What transmission does the Oliver OC-3 use?
The Oliver OC-3 uses a Gear transmission.