Oliver
Oliver 550
The Oliver 550 is a utility tractor produced from 1958 to 1975 by Oliver in Charles City, Iowa, USA. It was built with gasoline and diesel 2.5L 4-cylinder Waukesha-Oliver engines. The tractor features a 6-speed gear transmission with dry disc clutch, power assist steering, and differential mechanical dry disc brakes. It has an open operator station and an independent rear PTO with 540/1000 RPM options. The 550 has a wheelbase of 72.9 inches, weighs between 3070 and 3730 pounds, and uses 6.00-16 front tires and 12-26 rear tires. Fuel capacity is 13 gallons and hydraulic system capacity is 2.5 gallons with a 5.25 gpm pump flow. Electrical system uses positive ground with 2 batteries for diesel and 1 for gas models. The Oliver 550 was priced originally at $4,400 in 1975 and had a total production of over 20,000 units.
Power46 hp[P]
Founded1958 - 1975
Model550
Technical Specifications
Detailed specifications and technical data for Oliver 550
Power
| PTO (tested) | 41.39 hp (30.9 kW) |
|---|---|
| PTO (claimed) | 41.39 hp (30.9 kW) |
| Drawbar (tested) | 35.36 hp (26.4 kW) |
| Drawbar (claimed) | 35.3 hp (26.3 kW) |
Engine
| Diesel engine | Waukesha-Oliver, 4-cylinder, liquid-cooled, displacement 155 ci (2.5 L), bore/stroke 3.625x3.75 inches (92 x 95 mm), air cleaner oil bath, compression 16:1, rated RPM 2000, starter volts 12 |
|---|---|
| Engine options | Waukesha-Oliver 2.5L 4-cyl gasoline, Waukesha-Oliver 2.5L 4-cyl diesel |
| Gasoline engine | Waukesha-Oliver, 4-cylinder, liquid-cooled, displacement 155 ci (2.5 L), bore/stroke 3.62x3.75 inches (92 x 95 mm), air cleaner oil bath, compression 7.75:1, rated RPM 2000, starter volts 12, oil capacity 4 qts (3.8 L) |
Weight
| Operating | 3730 lbs (1691 kg) |
|---|---|
| Gas Shipping | 3070 lbs (1392 kg) |
| Diesel Shipping | 3170 lbs (1437 kg) |
Capacity
| Fuel | 13 gal (49.2 L) |
|---|---|
| Hydraulic system | 2.5 gal (9.5 L) |
Electrical
| Ground | positive |
|---|---|
| Batteries | 2 (diesel), 1 (gas) |
| Battery volts | 6 (diesel), 12 (gas) |
Hydraulics
| Type | open center |
|---|---|
| Capacity | 2.5 gal (9.5 L) |
| Pump flow | 5.25 gpm (19.9 lpm) |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Differential mechanical dry disc brakes |
| Steering | power assist |
| Operator station | Open operator station |
Production
| Note | During the first year of production the Oliver 550 had the same 2.4L engine as the Super 55. |
|---|---|
| Type | Utility tractor |
| Built in | Charles City, Iowa, USA |
| Total built | 20,368 (Oliver), 3,915 (Cockshutt) |
| Original price | $4,400 in 1975 |
| Years produced | 1958 - 1975 |
Transmission
| Type | gear |
|---|---|
| Gears | 6 forward and 2 reverse |
| Clutch | dry disc |
| Oil capacity | 20 qts (18.9 L) |
Tractor hitch
| Rear Type | I |
|---|
Dimensions & Tires
| Length | 119.9 inches (304 cm) |
|---|---|
| Weight | 3070 to 3730 pounds |
| Rear tire | 12-26 |
| Wheelbase | 72.9 inches (185 cm) |
| Front tire | 6.00-16 |
| Rear tread | 48 to 76 inches (121 to 193 cm) |
| Front tread | 48 to 76 inches (121 to 193 cm) |
| Height (hood) | 50.1 inches (127 cm) |
| Height (steering wheel) | 58 inches (147 cm) |
Power Take-off (PTO)
| Rear PTO | independent |
|---|---|
| Rear PTO Type | 540/1000 |