Production years
1964-1967
Oliver tractor ยท 1964-1967
Oliver 1950 Tractor
The Oliver 1950 is the original 50 Series high-power row-crop model, built from 1964 to 1967 and commonly rated at about 105 PTO hp. Its Detroit Diesel two-stroke engine makes it one of the most distinctive and collectible Oliver tractors, while the later 1950-T is a separate turbocharged model.
Engine
General Motors Detroit Diesel 3.5 L, 212 cu. in. 4-53 two-stroke 4-cylinder diesel
Power
105.79 hp tested PTO; 98.00 hp tested drawbar
Weight
Approx. 11,955 lb 2WD; 12,975 lb 4WD
Oliver 1950 specifications
| Production years | 1964-1967 |
|---|---|
| Engine | General Motors Detroit Diesel 3.5 L, 212 cu. in. 4-53 two-stroke 4-cylinder diesel |
| Power | 105.79 hp tested PTO; 98.00 hp tested drawbar |
| Transmission | 6-speed gear or 12-speed partial power shift |
| Weight | Approx. 11,955 lb 2WD; 12,975 lb 4WD |
| Fuel type | Diesel |
| PTO | Independent 540 rpm rear PTO |
| Drive options | Two-wheel drive or four-wheel drive |
What the 1950 is used for
The 1950 was built for heavy row-crop work, including large plows, tillage tools, and high-demand PTO jobs. The Detroit Diesel provided a distinctive power delivery and sound that separated it from most competing farm tractors of its period.
Today, many examples are preserved for shows, parades, and collector use, while well-maintained tractors still handle farm work. Owners who use them regularly typically value their power and character but plan maintenance around the specialized Detroit engine.
Why the Oliver 1950 stands out
The 1950 is especially notable for its Detroit Diesel 4-53 two-stroke, a rare and memorable engine choice in a row-crop tractor. It is a centerpiece model for many Oliver collectors and has a dedicated community, although its engine-specific service requirements distinguish it from more conventional farm diesels.
Buying a used Oliver 1950
Confirm that the tractor is a 1950 rather than the later 1950-T, as engine, transmission, weight, and production details differ. Check cold starting, blower and injector condition, air-box and exhaust leaks, clutch, PTO, hydraulic operation, steering, and brakes; use a technician familiar with Detroit two-stroke engines if engine condition is uncertain. Confirm exact figures with TractorData.com and serial-number records.
Oliver 1950 frequently asked questions
How much PTO horsepower does an Oliver 1950 have?
The commonly cited tested PTO output is about 105.8 hp.
What engine is in an Oliver 1950?
The original 1950 uses a General Motors Detroit Diesel 4-53, a 3.5 L four-cylinder two-stroke diesel.
What is the difference between an Oliver 1950 and 1950-T?
The 1950 was built from 1964-1967 with the Detroit Diesel 4-53, while the 1950-T was a later, separate turbocharged model built from 1967-1969.
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.