Oliver 550
The Oliver 550 is a tractor produced by Oliver. It is equipped with a 155 ci 2.5 L engine. Transmission: 6 forward and 2 reverse. Operating weight: 3070 to 3730 pounds.
Engine Power
35.09 hp
26.2 kW
Fuel & Capacities
13 gal
49.2 L
Transmission
6 forward and 2 reverse
Operating Weight
3070 to 3730 pounds
Oliver 550 Serial Number & Year Decoder
Find the exact manufacture year of your tractor by checking your chassis serial number below.
Where to Find the Serial NumberThe serial number plate is commonly located on the front frame, tractor transmission housing (right side), or instrument panel badge.
Overview
 | 1958 - 1975
Utility tractor |
|---|---|
1958 - 1975 | |
Utility tractor | |
Production | |
|---|---|
Manufacturer | Oliver |
Utility tractor | |
Built in Charles City, Iowa, USA | |
Total built | 20,368 (Oliver) |
3,915 (Cockshutt) | |
Original price was $4,400 in 1975 | |
During the first year of production the Oliver 550 had the same 2.4L engine as the Super 55. | |
Oliver 550 Transmission | |
|---|---|
6-speed gear | |
Transmission details ...  |
Oliver 550 Power | |
|---|---|
Drawbar (claimed) | 35.3 hp
26.3 kW |
PTO (claimed) | 41.39 hp
30.9 kW |
Drawbar (tested) | 35.36 hp
26.4 kW |
PTO (tested) | 41.39 hp
30.9 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two-wheel drive | |
Steering | power assist |
Differential mechanical dry disc brakes | |
Open operator station. | |
Capacity | |
|---|---|
Fuel | 13 gal
49.2 L |
Hydraulic system | 2.5 gal
9.5 L |
Hydraulics | |
|---|---|
Type | open center |
Capacity | 2.5 gal
9.5 L |
Pump flow | 5.25 gpm
19.9 lpm |
Tractor hitch | |
|---|---|
Rear Type | I |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540/1000 |
Dimensions & Tires | |
|---|---|
Wheelbase | 72.9 inches
185 cm |
Weight | 3070 to 3730 pounds |
Front tire | 6.00-16 |
Rear tire | 12-26 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | positive |
Batteries | 2 (diesel) |
1 (gas) | |
Battery volts | 6 (diesel) |
12 (gas) | |
References | |
|---|---|
 | |
3-Plow Power 550 Tractor published in 1962, by Oliver |
Engine
Engine options | |
|---|---|
Oliver 2.5L 4-cyl gasoline | |
Oliver 2.5L 4-cyl diesel |
Engine Detail — 155 ci / 2.5 L Gasoline
Manufacturer | Oliver |
Fuel Type | Gasoline |
Configuration | 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 |
Engine Detail — 155 ci / 2.5 L Diesel
Manufacturer | Oliver |
Fuel Type | Diesel |
Configuration | 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 |
Transmission
Transmission — 6 forward and 2 reverse gear
Type | gear |
Gears | 6 forward and 2 reverse |
Clutch | dry disc |
Oil capacity | 20 qts
18.9 L |
 | |
Dimensions
Oliver 550 Tires | |
|---|---|
Ag front | 6.00-16 |
Ag rear | 12-26 |
Dimensions | |
|---|---|
Wheelbase | 72.9 inches
185 cm |
Length | 119.9 inches
304 cm |
Height (steering wheel) | 58 inches
147 cm |
Height (hood) | 50.1 inches
127 cm |
Front tread | 48 to 76 inches
121 to 193 cm |
Rear tread | 48 to 76 inches
121 to 193 cm |
Oliver 550 Weight | |
|---|---|
Gas Shipping | 3070 lbs
1392 kg |
Diesel Shipping | 3170 lbs
1437 kg |
Operating | 3730 lbs
1691 kg |
Tests
Tractor Tests | |
|---|---|
NTTL 697: gasoline 6-speed 2WD | |
NTTL 698: diesel 6-speed 2WD |
Nebraska Tractor Test 697 | |
|---|---|
Gasoline 6-speed 2WD
May 11 - 26, 1959
Link: Nebraska Tractor Test 697 file | |
PTO performance | |
Max power | 41.39 hp
30.9 kW |
Fuel use | 3.3 gal/hour
12.5 l/hour |
Drawbar performance | |
Max power | 35.36 hp
26.4 kW |
Fuel use | 3.3 gal/hour
12.5 l/hour |
Gear 4 used for power test. | |
Max pull | 5146 lbs
2334 kg |
Gear 2 used for pull test. | |
Nebraska Tractor Test 698 | |
|---|---|
Diesel 6-speed 2WD
May 13 - 26, 1959
Link: Nebraska Tractor Test 698 file | |
PTO performance | |
Max power | 39.21 hp
29.2 kW |
Fuel use | 2.8 gal/hour
10.6 l/hour |
Drawbar performance | |
Max power | 35.09 hp
26.2 kW |
Fuel use | 2.8 gal/hour
10.6 l/hour |
Gear 4 used for power test. | |
Max pull | 5110 lbs
2317 kg |
Gear 2 used for pull test. | |
Photos
Oliver 550, left side.
Oliver 550, right side.
Oliver 550 operator station and controls.
Early (pre-1963) style Oliver 550 with horizontal-slat grill.
Oliver 550, front-right.
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