Oliver 550
The Oliver 550 is a utility tractor that was made from 1958 to 1975. It's a 2-wheel drive tractor with power steering, which makes it easier to control. The tractor has a 6-speed gear transmission with 2 reverse gears, giving farmers plenty of options for different tasks. Under the hood, the Oliver 550 has a 4-cylinder gasoline engine that's liquid-cooled. The engine is average in size for tractors of its type, with 155 cubic inches of displacement. It can produce 44.31 horsepower at 2000 rpm, which is also about average for similar tractors. The tractor weighs 3730 pounds, making it a mid-weight option. It has agricultural tires on both the front and back, perfect for farm work. The Oliver 550 also comes with a three-point hitch at the back and two PTO speeds (540 and 1000 rpm) for using different tools.
Quick specs
- Category
- Utility
- Engine Power Output
- 44hp
- Operating Weight
- 3,730 lb
- Transmission
- Gear
At a glance
How the 550 compares
vs. Utility medianDistribution
Engine Power (hp)
Across all Utility tractors
This model
The 550 ranks at the 38th percentile for engine power among recorded utility tractors.
Overview
About the Oliver 550
The Oliver 550 is a utility tractor that was made from 1958 to 1975. It's a 2-wheel drive tractor with power steering, which makes it easier to control. The tractor has a 6-speed gear transmission with 2 reverse gears, giving farmers plenty of options for different tasks. Under the hood, the Oliver 550 has a 4-cylinder gasoline engine that's liquid-cooled. The engine is average in size for tractors of its type, with 155 cubic inches of displacement. It can produce 44.31 horsepower at 2000 rpm, which is also about average for similar tractors. The tractor weighs 3730 pounds, making it a mid-weight option. It has agricultural tires on both the front and back, perfect for farm work. The Oliver 550 also comes with a three-point hitch at the back and two PTO speeds (540 and 1000 rpm) for using different tools.
Full specifications
Every recorded spec
General
| Manufacturer | Oliver |
|---|---|
| Model | 550 |
| Category | Utility tractor |
| Type | 4x2 |
| Years built | 1958–1975 |
| Operating weight | 3,730lb |
Engine
| Make | Oliver |
|---|---|
| Power | 44.31hp |
| Cylinders | 4 |
| Displacement | 155ci |
| Bore | 3.62in |
| Stroke | 3.75in |
Transmission
| Type | Gear |
|---|---|
| Forward gears | 6 |
| Reverse gears | 2 |
Chassis & drive
| Chassis | 4x2 |
|---|---|
| Drive | 2WD |
| Steering | Power assist |
| Brakes | Differential mechanical dry disc |
| Cab | Open |
Hydraulics
| Type | Open center |
|---|
Power take-off
| Rear PTO | Independent |
|---|---|
| PTO speed | 540rpm |
Dimensions
| Length | 119.9in |
|---|---|
| Height | 58in |
| Operating weight | 3,730lb |
Head to head
550 vs. Utility median
How the Oliver 550 compares to other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 44.3 hp | 55 hp | -19% | 38th |
| Engine Displacement | 155 ci | 183 ci | -15% | 42nd |
| Cylinders | 4 | 4 | at median | 50th |
| Forward Gears | 6 | 12 | -50% | 11th |
| Operating Weight | 3,730 lb | 5,303 lb | -30% | 32nd |
| Length | 120 in | 137 in | -12% | 27th |
| Height | 58 in | 94.1 in | -38% | 8th |
Medians and percentiles are computed from the utility tractors in our database with a recorded value for each spec (sample sizes 4,321–5,720 models).
Compare to tractors with similar specs
Commonly compared Oliver tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Oliver Super 55 | 35.91 hp | 3,400 lb | 1954–1958 | Compare → |
| Oliver 500 | 35 hp | 4,094 lb | — | Compare → |
| Oliver OC-4 | 30.45 hp | 4,720 lb | 1958+ | Compare → |
| Oliver 1365 | 59 hp | 4,410 lb | 1971–1975 | Compare → |
| Oliver 990 | 61.4 hp | 11,000 lb | 1958–1961 | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| AGCO ST45 | 44.2 hp | 4,448 lb | — | Compare → |
| Allis Chalmers 5045 | 44 hp | 3,850 lb | 1981–1983 | Compare → |
| Ag King AK4540 | 45 hp | 4,650 lb | — | Compare → |
| Apollo 454 | 45 hp | 4,365 lb | — | Compare → |
| Ascot Universal 445 | 45 hp | 4,500 lb | — | Compare → |
Explore
Oliver siblings
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FAQ
Common questions
What years was the Oliver 550 manufactured?
Production of the Oliver 550 ran from 1958 through 1975.
What is the working weight of the Oliver 550?
The operating weight of the Oliver 550 is approximately 3,730 lb.
What type of transmission does the Oliver 550 have?
The Oliver 550 uses a Gear transmission offering 6 forward gears.
What hydraulics does the Oliver 550 have?
The Oliver 550 uses an Open center hydraulic system.
What three-point hitch category does the Oliver 550 use?
The Oliver 550 has a Category I three-point hitch.
How powerful is the Oliver 550?
The Oliver 550 has an engine power output of 44.31 hp. It is powered by a 4-cylinder engine displacing 155 ci.
What routine service does the Oliver 550 need?
Regular maintenance for the Oliver 550 includes checking and changing engine oil, hydraulic fluid, and filters, plus routine inspections as recommended in the owner's manual. Always follow the manufacturer's maintenance schedule for specific intervals and procedures.



