Introduction
Oliver OC-6: Agricultural Crawler Tractor
The Oliver OC-6 is a tracked agricultural tractor manufactured in Cleveland, Ohio, between 1953 and 1960. Based on the mechanical architecture of the Oliver 77, this crawler was designed to provide specialized traction for agricultural operations, with a dedicated diesel variant known as the OC-6D.
Engine and Performance
The tractor is powered by an Oliver-Waukesha 6-cylinder liquid-cooled gasoline engine, delivering 45 horsepower at a rated speed of 1600 RPM. It features a displacement of 216.5 cubic inches (3.5 L) and a compression ratio of 15.75:1. The engine utilizes a Vortox oil bath air cleaner and has a firing order of 1-5-3-6-2-4. Some units were equipped with a larger bore engine that replaced the original gasoline configuration.
Transmission and Drivetrain
The OC-6 utilizes a gear-type transmission providing 6 forward speeds and 2 reverse speeds. Power is transferred through a dry disc clutch. As a crawler, the machine relies on 8-inch wide tracks to provide traction, controlled by mechanical contracting band brakes. An independent rear PTO is available as an optional feature to drive mounted implements.
Dimensions and Capacity
The tractor features a wheelbase of 54.2 inches (137 cm). Its operating weight ranges from 5,565 to 5,855 pounds depending on the configuration. Maintenance capacities include 17 quarts (16.1 L) for the cooling system and 5 quarts (4.7 L) for the engine oil.
Conclusion
The Oliver OC-6 remains a classic example of mid-20th-century American crawler engineering. Its combination of tracked mobility and a 45-horsepower engine makes it suitable for agricultural tasks requiring high traction and low ground pressure in challenging soil conditions.
Production Information of Oliver, OC-6
- The diesel variant of the Oliver OC-6 was known as the OC-6D. The OC-6 was based on the Oliver 77 tractor.
- Agricultural Crawler tractor
- Built in Cleveland, Ohio, USA
| Manufacturer | Oliver |
|---|
Engine Specifications of Oliver, OC-6
- Oliver-Waukesha
- Larger bore engine replaced the original gas engine
- Liquid-cooled
- Gasoline
- 6-cylinder
| Firing order | 1-5-3-6-2-4 |
|---|---|
| Air cleaner | Vortox oil bath |
| Displacement | 216.5 ci [3.5 L] |
| Coolant capacity | 17 qts [16.1 L] |
| Oil capacity | 5 qts [4.7 L] |
| Rated RPM | 1600 |
| Compression | 15.75:1 |
| Bore/Stroke | 3.50x3.75 inches [89 x 95 mm] |
Transmission Information of Oliver, OC-6
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 6 forward and 2 reverse |
| Clutch | Dry disc |
Mechanical Specs of Oliver, OC-6
- Mechanical contracting band brakes
- Open operator station.
| Drive | Crawler |
|---|
Power Information of Oliver, OC-6
| Rear PTO | Independent optional |
|---|
Where it sits
With 45 HP, the Oliver OC-6 sits between 80 (43 HP) and 88 (46 HP) in Oliver's range. Its power puts it in the 66th percentile of 1950s models in our database (592 machines).
Frequently asked questions
How much horsepower does the Oliver OC-6 have?
The Oliver OC-6 delivers 45 HP.
What years was the Oliver OC-6 produced?
The Oliver OC-6 was produced in 1953-1960.
What engine does the Oliver OC-6 have?
The Oliver OC-6 is powered by a Larger bore engine replaced the original gas engine, 6-cylinder engine.
What transmission does the Oliver OC-6 use?
The Oliver OC-6 uses a Gear transmission.