Production years
1965-1969
Oliver tractor ยท 1965-1969
Oliver 1550 Tractor
The Oliver 1550 is a versatile 50-hp-class row-crop tractor with about 53 hp at the PTO. It was offered with diesel, gasoline, or LP-gas power and several front-end configurations.
Engine
Oliver 3.8L 6-cylinder diesel, gasoline, or LP-gas
Power
53 hp claimed PTO for diesel and gasoline; 51 hp for LP-gas
Weight approx.
7,000 lb
Oliver 1550 specifications
| Production years | 1965-1969 |
|---|---|
| Engine | Oliver 3.8L 6-cylinder diesel, gasoline, or LP-gas |
| Power | 53 hp claimed PTO for diesel and gasoline; 51 hp for LP-gas |
| Transmission | 6-speed unsynchronized gear or 12-speed Hydra-Power partial powershift |
| Weight approx. | 7,000 lb |
| Fuel type | Diesel, gasoline, or LP-gas |
| Drive and steering | 2WD with power-assist steering |
| PTO | Independent rear PTO, available in 540, 1,000, or 540/1,000 rpm |
What the 1550 is used for
The 1550 is appropriate for mowing, hay work, light to medium tillage, and general chore duties. Its multiple fuel and transmission choices make it important to evaluate the exact tractor rather than relying on a single configuration description.
Row-crop versions were available with tricycle, single-front, or adjustable wide-front arrangements, while Wheatland and low-clearance utility versions broadened its use. The wide-front setup is generally the more practical choice for uneven terrain and loader-related work.
Why the Oliver 1550 stands out
The 1550 stands out for its 3.8L six-cylinder engine choices, independent PTO options, and available Hydra-Power 12-speed transmission. Nebraska testing of the diesel Hydra-Power version recorded 53.50 PTO hp and 45.7 drawbar hp.
Buying a used Oliver 1550
Determine the fuel type, front-end style, and transmission before comparing tractors, as each affects capability and parts needs. On Hydra-Power tractors, drive through every range under load; also inspect the PTO operation, disc brakes, steering assist, hydraulic system, and condition of the six-cylinder engine.
Oliver 1550 frequently asked questions
How much PTO power does an Oliver 1550 have?
Diesel and gasoline versions are rated at 53 hp claimed PTO, while the LP-gas version is rated at 51 hp.
Did the Oliver 1550 have a Hydra-Power transmission?
Yes. A 12-speed Hydra-Power partial powershift was available, alongside a 6-speed gear transmission.
Which fuels were available for the Oliver 1550?
Diesel, gasoline, and LP-gas versions were offered.
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.