Introduction
Oliver 550 Utility Tractor
The Oliver 550 is a utility tractor manufactured between 1962 and 1975 in Charles City, Iowa, USA. As part of a series that includes the 660, this model was designed for general agricultural tasks, offering a balance of mechanical simplicity and operational versatility.
Engine and Performance
The tractor is powered by a 4-cylinder, liquid-cooled diesel engine with a displacement of 155 cubic inches (2.5 liters). It operates at a rated speed of 2000 RPM, delivering 46 horsepower. The engine features an oil bath air cleaner and a 16:1 compression ratio, requiring a 12-volt starting system.
Transmission and Drivetrain
Equipped with a gear-type transmission, the 550 provides 6 forward speeds and 2 reverse speeds. Power is transferred via a dry disc clutch to a two-wheel drive system. The tractor includes a rear independent PTO capable of operating at 540 or 1000 RPM, allowing for the use of various implements.
Hydraulics and Steering
The hydraulic system utilizes an open-center design with a pump flow rate of 5.25 gpm (19.9 lpm) and a total reservoir capacity of 2.5 gallons (9.5 liters). Maneuverability is assisted by a power-assisted steering system, while braking is handled by differential mechanical dry disc brakes.
Dimensions and Operator Station
The tractor features an open operator station designed for direct visibility. With a wheelbase of 72.9 inches (185 cm) and a total length of 119.9 inches (304 cm), the machine is configured with adjustable front and rear treads ranging from 48 to 76 inches (121 to 193 cm). It rolls on 6.00-16 front and 12-26 rear agricultural tires.
Conclusion
With over 24,000 units produced under the Oliver and Cockshutt brands, the 550 serves as a dependable utility tractor for small to mid-sized farming operations. Its combination of a 46-hp engine, independent PTO, and standard hydraulic capabilities makes it a versatile choice for field work and general farm maintenance.
Production Information of Cockshutt, 550
- Utility tractor
- Original price was $4,400 in 1975
- Built in Charles City, Iowa, USA
| Manufacturer | Cockshutt |
|---|---|
| Manufacturer(optional) | 3,915 (Cockshutt) |
| Total built | 20,368 (Oliver) |
Dimension and Tires Information of Cockshutt, 550
| Wheelbase | 72.9 inches [185 cm] |
|---|---|
| Front tread | 48 to 76 inches [121 to 193 cm] |
| Height (hood) | 50.1 inches [127 cm] |
| Length | 119.9 inches [304 cm] |
| Rear tread | 48 to 76 inches [121 to 193 cm] |
| Height (steering wheel) | 58 inches [147 cm] |
| Ag front | 6.00-16 |
|---|---|
| Ag rear | 12-26 |
Engine Specifications of Cockshutt, 550
- Oliver
- Liquid-cooled
- Diesel
- 4-cylinder
| Oil capacity | 4 qts [3.8 L] |
|---|---|
| Displacement | 155 ci [2.5 L] |
| Compression | 16:1 |
| Bore/Stroke | 3.625x3.75 inches [92 x 95 mm] |
| Starter volts | 12 |
| Rated RPM | 2000 |
| Air cleaner | Oil bath |
Transmission Information of Cockshutt, 550
Transmission variants 1
| Type | Gear |
|---|---|
| Oil capacity | 20 qts [18.9 L] |
| Gears | 6 forward and 2 reverse |
| Clutch | Dry disc |
Mechanical Specs of Cockshutt, 550
- Two-wheel drive
- Open operator station.
- Differential mechanical dry disc brakes
| Steering | Power assist |
|---|
Power Information of Cockshutt, 550
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 540/1000 |
Hydraulics Specifications of Cockshutt, 550
| Type | Open center |
|---|---|
| Capacity | 2.5 gal [9.5 L] |
| Pump flow | 5.25 gpm [19.9 lpm] |
Three-Point Hitch of Cockshutt, 550
| Rear Type | I |
|---|
Electrical System of Cockshutt, 550
| Ground | Positive |
|---|---|
| Ground(optional) | 12 (gas) |
| Battery volts | 6 (diesel) |
| Batteries | 2 (diesel) |
| Batteries(optional) | 1 (gas) |
Where it sits
With 46 hp[P] HP, the Cockshutt 550 sits just above 660 (45 HP) in Cockshutt's range. Its power puts it in the 45th percentile of 1960s models in our database (709 machines).
Frequently asked questions
How much horsepower does the Cockshutt 550 have?
The Cockshutt 550 delivers 46 hp[P] HP.
What years was the Cockshutt 550 produced?
The Cockshutt 550 was produced in 1962-1975.
What engine does the Cockshutt 550 have?
The Cockshutt 550 is powered by a Diesel, 4-cylinder engine.
What transmission does the Cockshutt 550 use?
The Cockshutt 550 uses a Gear transmission.
Is the Cockshutt 550 4WD?
The Cockshutt 550 is available in 2WD.