Oliver 990
The Oliver 990 is a tractor produced by Oliver. It is equipped with a 213 ci 3.5 L engine. The rated power output is 84.10 hp 62.7 kW. Transmission: 6 forward and 2 reverse. Operating weight: 11,000 lbs 4989 kg.
Engine Power
84.10 hp
62.7 kW
Fuel & Capacities
6.3 gal/hour
23.8 l/hour
Transmission
6 forward and 2 reverse
Operating Weight
11,000 lbs
4989 kg
Oliver 990 Serial Number & Year Decoder
Find the exact manufacture year of your tractor by checking your chassis serial number below.
Where to Find the Serial NumberThe serial number plate is commonly located on the front frame, tractor transmission housing (right side), or instrument panel badge.
Overview
 | 1958 - 1961
900 SeriesStandard-tread tractor |
|---|---|
1958 - 1961 | |
900 Series | |
Standard-tread tractor | |
Production | |
|---|---|
Manufacturer | Oliver |
Standard-tread tractor | |
Built in Charles City, Iowa, USA | |
Original price was $8,200 in 1961 | |
The Oliver 990 was also sold as the Massey Ferguson 98 (with different sheet metal, paint, and seat). | |
Variants | |
|---|---|
990 | gear drive |
995 | torque converter |
Oliver 990 Engine | |
|---|---|
General Motors 3.5L 3-cyl diesel | |
Engine details ...  |
Oliver 990 Transmission | |
|---|---|
6-speed gear | |
Transmission details ...  |
Oliver 990 Power | |
|---|---|
Drawbar (claimed) | 61.4 hp
45.8 kW |
PTO (claimed) | 84.1 hp
62.7 kW |
Plows | 6 |
Drawbar (tested) | 61.46 hp
45.8 kW |
Belt (tested) | 84.10 hp
62.7 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two-wheel drive | |
Steering | power |
Disc brakes | |
Open operator station. | |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent OptOptional |
Rear PTO Type | 540 |
Dimensions & Tires | |
|---|---|
Wheelbase | 79.875 inches
202 cm |
Weight | 11,000 lbs
4989 kg |
Front tire | 7.50-18 |
Rear tire | 18-26 |
Full dimensions and tires ...  | |
Belt Pulley | |
|---|---|
Diameter | 12.25 inches
31 cm |
Width | 9 inches
22 cm |
RPM | 1021 |
Speed | 3277 ft/min
998.83 meters/min |
References | |
|---|---|
 | |
Industrial Wheel Tractors Sales Features published in 1959, by Oliver |
Engine
Engine Detail — 213 ci / 3.5 L Diesel
Manufacturer | General Motors 3-71 |
Configuration | 3-cylinder, liquid-cooled |
blower diesel | |
two-cycle engine with mechanical blower | |
Displacement | 213 ci
3.5 L |
Bore/Stroke | 4.25x5.00 inches
108 x 127 mm |
Compression | 17:1 |
Rated RPM | 1800 |
Starter volts | 12 |
Transmission
Transmission — 6 forward and 2 reverse gear
Type | gear |
Gears | 6 forward and 2 reverse |
Clutch | dry disc |
 | |
Dimensions
Oliver 990 Tires | |
|---|---|
Ag front | 7.50-18 |
Ag rear | 18-26 |
14-34 | |
15-34 | |
Dimensions | |
|---|---|
Wheelbase | 79.875 inches
202 cm |
Weight | 11,000 lbs
4989 kg |
Front tread | 59.9 inches
152 cm |
Rear tread | 66 inches
167 cm |
Tests
Nebraska Tractor Test 661 | |
|---|---|
Diesel 6-speed 2WD
July 7 - 18, 1958
Link: Nebraska Tractor Test 661 file | |
Belt power (max) | 84.10 hp
62.7 kW |
Belt fuel use (max) | 6.3 gal/hour
23.8 l/hour |
Drawbar performance | |
Max power | 61.46 hp
45.8 kW |
Fuel use | 5.0 gal/hour
18.9 l/hour |
Gear 3 used for power test. | |
Max pull | 12629 lbs
5728 kg |
Gear 1 used for pull test. | |
Photos
Oliver 990
Oliver 990
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