Overview
The Oliver 99 is a standard-tread farm tractor produced from 1937 to 1953 in Charles City, Iowa, featuring an open operator station and manual steering. This model is equipped with a 4-speed gear transmission and was available with multiple engine configurations, including a 7.3L 4-cylinder gasoline engine and later 4.9L 6-cylinder variants. Nebraska Tractor Test 451 recorded a maximum belt power of 62.28 hp and a maximum drawbar pull of 7,594 lbs.
Ideal Applications
Tested Power Performance:
Nebraska Tractor Test 451 recorded a maximum drawbar pull of 7,594 lbs and a belt power output of 62.28 hp at a rate of 6.3 gallons of gasoline per hour.
Engine and Mechanical Configuration:
The tractor is listed with a 7.3L 4-cylinder gasoline engine featuring an oil bath air cleaner, hand-crank starter, and a 34-gallon fuel tank capacity.
Chassis and Weight Specifications:
The machine has a ballasted weight of 13,110 lbs, a 125.75-inch length, and an 80-inch wheelbase with 46x12 rear tires.
Production
| Description | Standard-tread tractor / Original price was $3,500 in 1956 / The Oliver 99 replaced the High-Compression Special 28-44. The low-compression version was the 90. |
|---|---|
| Factories | Charles City, Iowa, USA |
| Manufacturer | Oliver |
Engine
| Air cleaner | oil bath |
|---|---|
| Bore/Stroke | 4.75x6.25 inches (121 x 159 mm) / 4.00x4.00 inches (102 x 102 mm) / 4.00x4.00 inches (102 x 102 mm) |
| Compression | 5.5:1 |
| Description | Oliver / gasoline / 4-cylinder / liquid-cooled / Waukesha-Oliver / diesel / 6-cylinder / liquid-cooled / Available in styled 99, after 1952 / Waukesha-Oliver / gasoline / 6-cylinder / liquid-cooled / Available in styled 99, after 1952 |
| Displacement | 443 ci (7.3 L) / 302 ci (4.9 L) / 302 ci (4.9 L) |
| Rated RPM | 1125 / 1675 / 1675 |
| Starter type | hand-crank |
| Engine type | Oliver 7.3L 4-cyl gasoline / Waukesha-Oliver 4.9L 6-cyl diesel / Waukesha-Oliver 4.9L 6-cyl gasoline |
| Engine type | Oliver 7.3L 4-cyl gasoline / Waukesha-Oliver 4.9L 6-cyl diesel / Waukesha-Oliver 4.9L 6-cyl gasoline |
| Fuel tank | 34 gal (128.7 L) |
| Belt (tested) | 62.28 hp (46.4 kW) |
| Drawbar (tested) | 52.05 hp (38.8 kW) |
| Plows | 5 |
Transmission
| Clutch | dry disc |
|---|---|
| Gears | 4 forward and 1 reverse |
| Transmission type | 4-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Manual steering / Contracting band brakes |
| Drive type | Two-wheel drive |
PTO
| Rear PTO | independent OptOptional |
|---|---|
| Rear PTO Type | 540 (1.375) |
Dimensions & Tires
| Ballasted weight | 13110 lbs (5946 kg) |
|---|---|
| Height (hood) | 59.5 inches (151 cm) |
| Length | 125.75 inches (319 cm) |
| Operating weight | 7073 lbs (3208 kg) |
| Rear tread | 52 inches (132 cm) |
| Wheelbase | 80 inches (203 cm) |
| Width | 65 inches (165 cm) |
| Front tire | 7.50-18 |
| Rear tire | 46x12 |
| Weight | 7073 lbs (3208 kg) |
| Wheelbase | 80 inches (203 cm) |
| Ag front | 7.50-18 |
| Ag rear | 46x12 (steel) / 13-30 |
99 Serial Numbers
| 1937 | 508918 |
|---|---|
| 1938 | 508935 |
| 1939 | 509612 |
| 1940 | 510068 |
| 1941 | 510564 |
| 1942 | 510977 |
| 1943 | 511296 |
| 1944 | 511474 |
| 1945 | 512044 |
| 1946 | 512821 |
| 1947 | 513106 |
| 1948 | 513856 |
| 1949 | 514856 |
| 1950 | 516276 |
| 1951 | 516888 |
| 1952 | 517874 |
| Description | FAQ: How to read a serial number table. |
Belt Pulley
| Diameter | 16.75 inches (42 cm) |
|---|---|
| RPM | 596 |
| Speed | 2600 ft/min (792.48 meters/min) |
| Width | 8.25 inches (20 cm) |
Nebraska Tractor Test 451
| Belt fuel use (max) | 6.3 gal/hour (23.8 l/hour) |
|---|---|
| Belt power (max) | 62.28 hp (46.4 kW) |
| Description | Gasoline 4-speed 2WDSeptember 29 - October 9, 1950Link: Nebraska Tractor Test 451 file / Drawbar performance / Gear 2 used for power test. / Gear 1 used for pull test. |
| Max power | 52.05 hp (38.8 kW) |
| Max pull | 7,594 lbs (3444 kg) |
Variants
| 90 | all-fuel engine |
|---|---|
| 99 | gasoline engine |