Oliver
Oliver OC-4
The Oliver OC-4 is an agricultural crawler tractor produced from 1957 to 1965 by Oliver in Cleveland, Ohio, USA. It features a Hercules 2.1L 3-cylinder diesel or gasoline engine, a 4-speed gear transmission, and is designed for crawler drive. The tractor has a power output of approximately 30 hp and offers various drawbar and belt power ratings. It includes a rear PTO with a 540 rpm type. The OC-4 has 10-inch tracks and weighs between 4720 and 5000 pounds depending on configuration. It was available in variants including the OC-46 loader-crawler and the Alfta flex-track.
Power30 hp
Founded1957 - 1965
ModelOC-4
Technical Specifications
Detailed specifications and technical data for Oliver OC-4
Power
| Engine | 30.45 hp (22.7 kW) |
|---|---|
| Belt (tested) | 26.08 hp (19.4 kW) |
| Drawbar (tested) | 24.15 hp (18.0 kW) |
| Gas Belt (claimed) | 26.47 hp (19.7 kW) |
| Diesel Belt (claimed) | 27.31 hp (20.4 kW) |
| Gas Drawbar (claimed) | 24.05 hp (17.9 kW) |
| Diesel Drawbar (claimed) | 24.75 hp (18.5 kW) |
Engine
| Power | 30.45 hp (22.7 kW) |
|---|---|
| Torque | 96 lb-ft (130.2 Nm) |
| Rated RPM | 1700 |
| Torque RPM | 1200 |
| Air cleaner | oil bath |
| Bore/Stroke | 3.50x4.50 inches (89 x 114 mm) |
| Compression | 14.5:1 |
| Displacement | 130 ci (2.1 L) |
| Oil capacity | 5.75 qts (5.4 L) |
| Starter volts | 12 |
| Engine options | Hercules 2.1L 3-cyl diesel, Herclues 2.1L 3-cyl gasoline |
| Hercules DD130 | diesel, 3-cylinder, liquid-cooled vertical I-head |
| Herclues GTO130 | gasoline, 3-cylinder, liquid-cooled vertical I-head |
| Coolant capacity | 12 qts (11.4 L) |
| Power (gasoline) | 30.20 hp (22.5 kW) |
| Torque (gasoline) | 97 lb-ft (131.5 Nm) |
| Rated RPM (gasoline) | 1700 |
| Torque RPM (gasoline) | 1400 |
| Air cleaner (gasoline) | oil bath |
| Bore/Stroke (gasoline) | 3.50x4.50 inches (89 x 114 mm) |
| Compression (gasoline) | 6.5:1 |
| Displacement (gasoline) | 130 ci (2.1 L) |
| Oil capacity (gasoline) | 5.75 qts (5.4 L) |
| Starter volts (gasoline) | 6 |
Tracks
| Width | 10 inches (25 cm) |
|---|---|
| Width (alt) | 12 inches (30 cm) |
| Area on ground | 1122 in² (0.7 m²) |
| Length on ground | 56.125 inches (142 cm) |
| Area on ground (alt) | 1347 in² (0.9 m²) |
| Length on ground (alt) | 56.125 inches (142 cm) |
Weight
| Gas Shipping | 4720 lbs (2140 kg) |
|---|---|
| Gas Operating | 4970 lbs (2254 kg) |
| Diesel Shipping | 4750 lbs (2154 kg) |
| Diesel Operating | 5000 lbs (2268 kg) |
Variants
| OC-4 | crawler |
|---|---|
| Alfta | flex-track |
| OC-46 | loader-crawler |
Dimensions
| Gauge | 46 inches (116 cm), 31 inches (78 cm), 60 inches (152 cm), 68 inches (172 cm) |
|---|---|
| Width | 60 inches (152 cm) |
| Length | 111 inches (281 cm) *Length with dozer blade |
Mechanical
| Drive | crawler |
|---|
Production
| Type | Agricultural Crawler tractor |
|---|---|
| Built in | Cleveland, Ohio, USA |
| Years produced | 1957 - 1965 |
Transmission
| Type | gear |
|---|---|
| Gears | 4 forward and 1 reverse |
| Clutch | dry disc |
Dimensions & Tracks
| Tracks | 10-inch tracks |
|---|---|
| Weight | 4720 to 5000 pounds |
Power Take-off (PTO)
| Rear PTO Type | 540 (1.375) |
|---|