Oliver 99 Tractor
The Oliver 99 is a large standard-tread tractor built from the late 1930s into the early 1950s, with tested output commonly cited at about 52 drawbar horsepower and 62 belt horsepower. It was Oliver's high-compression gasoline model and is admired as a powerful prewar and postwar standard tractor.
Oliver 99 specifications
| Production years | 1937-1953 |
|---|---|
| Engine | Early Oliver 443 cu. in. 4-cylinder gasoline; later Waukesha-Oliver 302 cu. in. 6-cylinder gasoline or diesel |
| Power | 52.05 hp drawbar; 62.28 hp belt, tested |
| Transmission | 4-speed gear |
| Weight | About 7,073 lb |
| Fuel type | Gasoline; later gasoline or diesel variants |
| Drive and steering | 2WD with manual steering |
| PTO | Optional independent 540 rpm |
What the 99 is used for
The 99 was designed for heavy drawbar and belt work, including five-plow farming and large stationary loads. Its standard-tread layout suited broad-acre field work rather than close row-crop cultivation.
Today it is mainly a collector, show, and antique-pulling tractor. A well-preserved example can do occasional light farm work, but its size, age, and scarce model-specific pieces encourage careful use.
Why the Oliver 99 stands out
The Oliver 99 stands out for its heavyweight standard-tread design and substantial power for its period. It represents Oliver's high-compression line, and its scarcity relative to smaller Oliver models gives complete, correctly configured examples strong collector interest.
Buying a used Oliver 99
Confirm which engine is fitted, because the 99 covered major engine changes over its long production run. Inspect for cracked castings, cooling-system damage, carburetion or diesel-injection issues, worn clutch and transmission components, and brake or PTO problems. Check the serial number, wheel equipment, and engine originality against records before paying a collector premium; values vary, so check current listings.
Oliver 99 frequently asked questions
How much horsepower does an Oliver 99 have?
Nebraska test figures commonly listed for the model are 52.05 drawbar horsepower and 62.28 belt horsepower.
What years was the Oliver 99 made?
The Oliver 99 was produced from 1937 through 1953.
Is an Oliver 99 good for regular farm work?
It was a powerful farm tractor in its day, but today it is best treated as a collector machine for demonstrations, shows, and carefully selected light work.
Specifications are commonly cited figures for general reference; exact figures vary by year and serial number, so confirm against TractorData.com and the machine's records. Values and prices of used tractors vary by condition and region. Page updated Aug 4, 2026.