Overview
The Oliver OC-18 is a diesel-powered crawler tractor manufactured in Cleveland, Ohio, from 1952 to 1960. It features a 14.7L Hercules 6-cylinder engine and a gear transmission system providing four forward and two reverse speeds.
Ideal Applications
Tested Drawbar Performance:
According to Nebraska Tractor Test 489, the unit achieved a maximum drawbar power of 128.08 hp and a maximum pull of 31,028 lbs.
Engine Configuration:
The Hercules DFXE engine is a liquid-cooled vertical I-head design with an 895 ci displacement, a 14.8:1 compression ratio, and a 24-volt starter.
Chassis and Track Specifications:
This 32,500 lb crawler is equipped with 22-inch tracks, a 78-inch gauge, and has an overall width of 111.75 inches.
Production
| Description | Agricultural Crawler tractor / Built in Cleveland, Ohio, USA |
|---|---|
| Manufacturer | Oliver |
Engine
| Engine type | Hercules 14.7L 6-cyl diesel |
|---|---|
| Fuel tank | 66 gal (249.8 L) |
| Air cleaner | oil bath |
| Bore/Stroke | 5.625x6.00 inches (143 x 152 mm) |
| Compression | 14.8:1 |
| Coolant capacity | 62 qts (58.7 L) |
| Description | Hercules DFXE / diesel / 6-cylinder / liquid-cooled vertical I-head |
| Displacement | 895 ci (14.7 L) |
| Power (net) | 161 hp (120.1 kW) |
| Rated RPM | 1500 |
| Starter volts | 24 |
| Belt (claimed) | 149 hp (111.1 kW) |
| Drawbar (claimed) | 133 hp (99.2 kW) |
| Drawbar (tested) | 128.08 hp (95.5 kW) |
| Engine (net) | 161 hp (120.1 kW) |
Transmission
| Clutch | dry disc |
|---|---|
| Gears | 4 forward and 2 reverse |
| Oil capacity | 104 qts (98.4 L) |
| Transmission type | 4-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Drive | crawler |
Dimensions & Tires
| Gauge | 78 inches (198 cm) |
|---|---|
| Height (steering wheel) | 83 inches (210 cm) |
| Length | 167.9 inches (426 cm) |
| Weight | 32500 lbs (14742 kg) |
| Width | 111.75 inches (283 cm) |
Dimensions & Tracks
| Description | 22-inch tracks |
|---|---|
| Weight | 32500 lbs (14742 kg) |
Nebraska Tractor Test 489
| Description | Diesel 4-speed crawerNovember 10 - 24, 1952Link: Nebraska Tractor Test 489 file / Drawbar performance / Gear 2 used for power test. / Gear 1 used for pull test. |
|---|---|
| Max power | 128.08 hp (95.5 kW) |
| Max pull | 31028 lbs (14074 kg) |
OC-18 Serial Numbers
| 1952 | 1KS000 |
|---|---|
| 1953 | 3500000 |
| 1954 | 4500000 |
| 1955 | 1KS178 |
| 1956 | 1KS382 |
| 1957 | 1KS638 |
| 1958 | 1KS710 |
| 1959 | 1KS750 |
| 1960 | 1KS758 |
| Description | FAQ: How to read a serial number table. |
Oliver OC-18 Tracks
| Width | 22 inches (55 cm) |
|---|