Oliver 990 tractor
Oliver 990 Specs
Production
| Manufacturer | Oliver |
| Type | Standard-tread tractor |
| Factory | Charles City, Iowa, USA |
| Original price | $8,200 (1961 ) |
| Production | The Oliver 990 was also sold as the Massey Ferguson 98 (with different sheet metal, paint, and seat). |
Power
| Drawbar (claimed) | 61.4 hp |
| PTO (claimed) | 84.1 hp |
| Plows | 6 |
| Drawbar (tested) | 61.46 hp |
| Belt (tested) | 84.10 hp |
Mechanical
| Chassis | 4x2 2WD |
| Steering | power |
| Brakes | disc |
| Cab | Open operator station. |
| Transmission | 6-speed gear |
Power Take-off (PTO)
| Rear PTO | independent |
| Rear RPM | 540 |
Serial Numbers
| 1958 | 67828 |
| 1959 | 71245 |
| 1960 | 84487 |
| 1961 | 110064 |
| Final | 115469 |
Engine
| Engine | General Motors 3.5L 3-cyl diesel |
Dimensions & Tires
| Wheelbase | 79.875 inches |
| Weight | 11,000 lbs |
| Front tire | 7.50-18 |
| Rear tire | 18-26 |
Belt Pulley
| Diameter | 12.25 inches |
| Width | 9 inches |
| RPM | 1021 |
| Speed | 3277 ft/min |
Oliver 990 engine specs
Engine Detail
| Engine Detail |
|
| Displacement | 213 ci |
| Bore/Stroke | 4.25x5.00 inches |
| Compression | 17:1 |
| Rated RPM | 1800 |
| Starter volts | 12 |
Oliver 990 transmission
Transmission
| Type | gear |
| Gears | 6 forward and 2 reverse |
| Clutch | dry disc |
Speeds
| 1 | 2.3 |
| 2 | 3.1 |
| 3 | 4.2 |
| 4 | 5.5 |
| 5 | 6.9 |
| 6 | 12.2 |
| R1 | 2.6 |
| R2 | 4.6 |
Oliver 990 dimensions
Tires
| Ag front | 7.50-18 |
| Ag rear |
|
Dimensions
| Wheelbase | 79.875 inches |
| Weight | 11,000 lbs |
| Front tread | 59.9 inches |
| Rear tread | 66 inches |
Oliver 990 photos
