Compare/Oliver 66 Row-Crop vs Oliver 90

Oliver 66 Row-Crop vs Oliver 90

Verdict: Oliver 66 Row-Crop vs Oliver 90

The Oliver 66 Row-Crop and the Oliver 90 are both tractors — here is how they stack up on the figures that matter. Oliver 66 Row-Crop leads on rated power with 23 hp against 22 hp. Oliver 90 is the lighter machine (3,175 kg vs 3,193 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Oliver 66 Row-Crop is the newer design (1949 vs 1937). In short: choose the Oliver 66 Row-Crop for outright pulling power, or the Oliver 90 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Oliver

Fit score

Best match

Clear

Oliver

Fit score

Best match

Clear

Rated power

23 hp

22 hp

Confidence

40%

Guide price

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Overview

Manufacturer

OliverReference

Diesel 6-speed 2WDOctober 12 - 18, 1951Link: Nebraska Tractor Test 467 fileReference

liquid-cooledReference

Original price

$2,000 (1954)Reference

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Steering

manualReference

Factories

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South Bend, Indiana, USAReference

Variants

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all-fuel engineReference

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gasoline engineReference

66R

row-cropReference

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66S

standardReference

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Engine

Fuel tank

37.9 LReference

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Plows

2 (14-inch)Reference

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Drawbar (tested)

16.8 kWReference

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Belt (tested)

18.7 kWReference

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Displacement

2.1 LReference

7.3 LReference

Bore/Stroke

84 x 95 mmReference

121 x 159 mmReference

Fuel system

Marvel-Schebler carburetorReference

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Air cleaner

oil bathReference

Compression

15.5:1Reference

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Rated RPM

1600Reference

1125Reference

Coolant capacity

13.2 LReference

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Belt power (max)

18.7 kWReference

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Max power

16.8 kWReference

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Drawbar (claimed)

—

16.4 kWReference

Belt (claimed)

—

32.8 kWReference

Starter type

—

electric (optional)Reference

Transmission

Gears

6 forward and 2 reverseReference

4 forward and 1 reverseReference

Clutch

dry discReference

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PTO & Hydraulics

Type

unsynchronized gearReference

gearReference

Rear PTO

independentReference

optionalReference

Rear PTO Type

540Reference

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Dimensions

Wheelbase

220 cmReference

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Weight

3193 to 3795 poundsReference

3175 kgReference

Front tire

5.00-15Reference

7.50-18Reference

Rear tire

8-38Reference

46x12Reference

Ag front

5.00-15Reference

7.50-18Reference

Ag rear

10-38Reference

15-30Reference

Length

342 cmReference

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Height

216 cmReference

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Ground clearance

61 cmReference

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Front tread

128 to 222 cmReference

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Rear tread

152 to 223 cmReference

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Operating

1721 kgReference

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Ballasted

2523 kgReference

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66 Serial Numbers

1949

420001Reference

514856Reference

1950

423101Reference

516276Reference

1951

426011Reference

516888Reference

1952

429771Reference

517874Reference

1953

3503990Reference

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1954

4500309Reference

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Final

4503563Reference

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Capacities

Diameter

30 cmReference

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Width

18 cmReference

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RPM

987Reference

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Speed

934.21 meters/minReference

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Test results

Belt fuel use (max)

6.8 l/hourReference

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Max pull

1619 kgReference

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90 Serial Numbers

1937

—

508918Reference

1938

—

508935Reference

1939

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509612Reference

1940

—

510068Reference

1941

—

510564Reference

1942

—

510977Reference

1943

—

511296Reference

1944

—

511474Reference

1945

—

512044Reference

1946

—

512821Reference

1947

—

513106Reference

1948

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513856Reference

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.