Introduction
Oliver 1550 Row-Crop Tractor
The Oliver 1550 is a row-crop tractor produced between 1965 and 1969. Manufactured by Cockshutt in Charles City, Iowa, this model was designed to serve as a versatile utility machine for mid-sized agricultural operations, offering a power output of 58 horsepower.
Engine and Cooling
The tractor is powered by a 6-cylinder liquid-cooled engine with a displacement of 232 cubic inches (3.8 liters). It features a dry-type air cleaner and operates at a rated speed of 2200 RPM. The engine cooling system has a capacity of 20 quarts (18.9 liters), ensuring thermal stability during extended field work.
Transmission and Drivetrain
Two transmission configurations were available. The Hydra-Power system provides 12 forward and 4 reverse gears, incorporating a partial power shift that allows for two-speed shifting between direct-drive and a lower range. Alternatively, a 6-speed unsynchronized gear transmission with 2 reverse gears was offered. Both systems utilize a 279.4mm dry disc clutch.
Hydraulics and PTO
The 1550 is equipped with an independent rear power take-off (PTO), available in 540 RPM or dual 540/1000 RPM configurations. The rear hitch is a category II/I type, featuring lower-link draft sensing to maintain consistent implement depth and performance.
Chassis and Dimensions
Built on a two-wheel drive chassis, the tractor includes power-assisted steering and disc brakes for operational control. It features a wheelbase of 99 inches (251 cm) and an operating weight of 7,000 lbs (3,175 kg). The rear tread is adjustable between 55 and 90.9 inches to accommodate various row spacings.
Conclusion
With its robust 6-cylinder engine and flexible transmission options, the Oliver 1550 remains a functional choice for traditional row-crop farming. Its combination of draft-sensing hydraulics and independent PTO makes it well-suited for a variety of towed and mounted implements.
Production Information of Cockshutt, 1550
- Original price was $6,000 in 1969
- Row-Crop tractor
- Built in Charles City, Iowa, USA
| Manufacturer | Cockshutt |
|---|
Dimension and Tires Information of Cockshutt, 1550
| Rear tread | 55 to 90.9 inches [139 to 230 cm] |
|---|---|
| Wheelbase | 99 inches [251 cm] |
| Operating weight | 7000 lbs [3175 kg] |
| Height (exhaust) | 97.625 inches [247 cm] |
| Length | 154.6 inches [392 cm] |
| Ballasted weight | 8730 lbs [3959 kg] |
| Width | 81.5 inches [207 cm] |
| Ag front | 6.00-16 |
|---|---|
| Ag rear | 15.5-38 |
Engine Specifications of Cockshutt, 1550
- Oliver
- Liquid-cooled
- LP-gas
- 6-cylinder
| Oil capacity | 5 qts [4.7 L] |
|---|---|
| Displacement | 232 ci [3.8 L] |
| Compression | 8.75:1 |
| Bore/Stroke | 3.625x3.75 inches [92 x 95 mm] |
| Coolant capacity | 20 qts [18.9 L] |
| Starter volts | 12 |
| Rated RPM | 2200 |
| Air cleaner | Dry |
Transmission Information of Cockshutt, 1550
Transmission variants 1
- The Hydra-Power transmission provides a two-speed power shift between direct-drive and the lower Hydra-Power range.
| Transmission | Hydra-Power |
|---|---|
| Oil capacity | 32 qts [30.3 L] |
| Clutch | 279.4mm dry disc |
| Type | Partial power shift |
| Gears | 12 forward and 4 reverse |
Transmission variants 2
| Type | Unsynchronized gear |
|---|---|
| Oil capacity | 32 qts [30.3 L] |
| Gears | 6 forward and 2 reverse |
| Clutch | 279.4mm dry disc |
- 12-speed partial power shift
- 6-speed unsynchronized gear
Mechanical Specs of Cockshutt, 1550
- Two-wheel drive
- Open operator station. Oliver Continental cab optional.
- Disc brakes
| Steering | Power assist |
|---|
Power Information of Cockshutt, 1550
| Rear PTO | Independent |
|---|---|
| Rear PTO(optional) | 540/1000 |
| Rear PTO Type | 540 |
| Rear PTO Type(optional) | 1000 |
Three-Point Hitch of Cockshutt, 1550
| Rear Type | II/I |
|---|---|
| Control | Lower-link draft sensing |
Where it sits
With 58 hp[P] HP, the Cockshutt 1550 sits just below 1650 (73 HP) in Cockshutt's range. Its power puts it in the 60th percentile of 1960s models in our database (709 machines).
Frequently asked questions
How much horsepower does the Cockshutt 1550 have?
The Cockshutt 1550 delivers 58 hp[P] HP.
What years was the Cockshutt 1550 produced?
The Cockshutt 1550 was produced in 1965-1969.
What engine does the Cockshutt 1550 have?
The Cockshutt 1550 is powered by a LP-gas, 6-cylinder engine.
What transmission does the Cockshutt 1550 use?
The Cockshutt 1550 uses a Hydra-Power transmission.
How much does the Cockshutt 1550 weigh?
The Cockshutt 1550 weighs 7000 lbs [3175 kg].
Is the Cockshutt 1550 4WD?
The Cockshutt 1550 is available in 2WD.