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Oliver 550 vs Oliver OC-6
Verdict: Oliver 550 vs Oliver OC-6
The Oliver 550 and the Oliver OC-6 are both tractors — here is how they stack up on the figures that matter. Oliver OC-6 leads on rated power with 45 hp against 41 hp. Oliver 550 is the lighter machine (3,070 kg vs 5,565 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Oliver 550 is the newer design (1958 vs 1953). In short: choose the Oliver OC-6 for outright pulling power, or the Oliver 550 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.
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Fit & specs
Oliver
62
Fit score
Best match
Clear
Oliver
62
Fit score
Best match
Clear
Rated power
41 hp
45 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
OliverReference
OliverReference
Diesel 6-speed 2WDMay 13 - 26, 1959Link: Nebraska Tractor Test 698 fileReference
Diesel 6-speed crawlerApril 17 - May 7, 1954Link: Nebraska Tractor Test 517 fileReference
Total built
3,915 (Cockshutt)Reference
—
Steering
power assistReference
—
Drive
—
crawlerReference
Engine
Drawbar (claimed)
26.3 kWReference
—
Drawbar (tested)
26.4 kWReference
25.0 kWReference
Displacement
2.5 LReference
3.5 LReference
Bore/Stroke
92 x 95 mmReference
89 x 95 mmReference
Air cleaner
oil bathReference
Vortox oil bathReference
Compression
16:1Reference
15.75:1Reference
Rated RPM
2000Reference
1600Reference
Starter volts
12Reference
—
Oil capacity
18.9 LReference
4.7 LReference
Max power
26.2 kWReference
25.0 kWReference
Fuel tank
—
62.5 LReference
Engine
—
33.6 kWReference
Plows
—
3Reference
Power
—
32.1 kWReference
Firing order
—
1-5-3-6-2-4Reference
Coolant capacity
—
16.1 LReference
Transmission
Gears
6 forward and 2 reverseReference
6 forward and 2 reverseReference
Clutch
dry discReference
dry discReference
PTO & Hydraulics
PTO (claimed)
30.9 kWReference
—
PTO (tested)
30.9 kWReference
—
Hydraulic system
9.5 LReference
—
Type
gearReference
gearReference
Capacity
9.5 LReference
—
Pump flow
19.9 lpmReference
—
Rear Type
IReference
—
Rear PTO
independentReference
independent optionalReference
Rear PTO Type
540/1000Reference
—
Capacities
Fuel
49.2 LReference
—
Dimensions
Wheelbase
185 cmReference
137 cmReference
Weight
3070 to 3730 poundsReference
5565 to 5855 poundsReference
Front tire
6.00-16Reference
—
Rear tire
12-26Reference
—
Ag front
6.00-16Reference
—
Ag rear
12-26Reference
—
Length
304 cmReference
308 cmReference
Height (steering wheel)
147 cmReference
—
Height (hood)
127 cmReference
—
Front tread
121 to 193 cmReference
—
Rear tread
121 to 193 cmReference
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Gas Shipping
1392 kgReference
—
Diesel Shipping
1437 kgReference
—
Operating
1691 kgReference
—
Height
—
143 cmReference
Ground clearance
—
50 cmReference
Gauge
—
172 cmReference
Gas Operating
—
2587 kgReference
Diesel Operating
—
2655 kgReference
550 Serial Number Location
550 Serial Numbers
1958
60501Reference
2RC262 (diesel)Reference
1959
72632Reference
2RC366 (diesel)Reference
1960
84416Reference
2RC458 (diesel)Reference
1961
111868Reference
—
1962
117541Reference
—
1963
127365Reference
—
1964
140620Reference
—
1965
162265Reference
—
1966
171923Reference
—
1967
186165Reference
—
1968
206095Reference
—
1969
213340Reference
—
1970
222833Reference
—
1971
226965Reference
—
1972
232918Reference
—
1973
238237Reference
—
1974
248375Reference
—
1975
259255Reference
—
Final
259491Reference
—
Electrical
Ground
positiveReference
—
Batteries
1 (gas)Reference
—
Battery volts
12 (gas)Reference
—
Test results
Fuel use
10.6 l/hourReference
—
Max pull
2317 kgReference
3074 kgReference
OC-6 Serial Numbers
1953
—
3502776 (diesel)Reference
1954
—
4500007 (diesel)Reference
1955
—
1RM468 (diesel)Reference
1956
—
1RM632 (diesel)Reference
1957
—
1RM876 (diesel)Reference
Oliver OC-6 Tracks
Option
—
12-inch tracksReference
Width
—
208 cmReference
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.