Compare/Fiat 55-66 vs Fiat 55-90

Fiat 55-66 vs Fiat 55-90

Verdict: Fiat 55-66 vs Fiat 55-90

The Fiat 55-66 and the Fiat 55-90 are both tractors — here is how they stack up on the figures that matter. Fiat 55-90 leads on rated power with 55 hp against 54 hp. Fiat 55-66 is the lighter machine (2,925 kg vs 6,526 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Fiat 55-90 holds more fuel (93.1 L vs 73.1 L) for longer stints between fills. Fiat 55-66 is the newer design (1985 vs 1984). In short: choose the Fiat 55-90 for outright pulling power, or the Fiat 55-66 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Fiat

Fit score

Best match

Clear

Fiat

Fit score

Best match

Clear

Rated power

54 hp

55 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

FiatReference

liquid-cooledReference

Additional two forward and one reverse creeper ranges added to the basic transmission.Reference

Final drives

—

planetaryReference

Differential lock

—

hydraulic rearReference

Engine

Fuel tank

73.1 LReference

93.1 LReference

Engine

40.5 kWReference

41.0 kWReference

Displacement

2.7 LReference

Bore/Stroke

100 x 115 mmReference

Power

40.5 kWReference

41.0 kWReference

Rated RPM

2500Reference

Torque

176.0 NmReference

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Torque RPM

1300Reference

—

Air cleaner

—

oil bathReference

Starter type

—

electricReference

Transmission

Gears

12 forward and 4 reverseReference

20 forward and 8 reverseReference

Type

—

creeperReference

PTO & Hydraulics

Pump flow

34.5 lpmReference

33.7 lpmReference

Rear lift

2900 kgReference

2899 kgReference

Rear PTO Type

540/1000Reference

Rear Type

—

II/IReference

Rear PTO

—

independentReference

Clutch

—

280mm dry discReference

Engine RPM

—

1000@2375Reference

Dimensions

Wheelbase

218 cmReference

—

Weight

2925 kgReference

6526 to 6923 poundsReference

Front tire

7.50-16Reference

Rear tire

14.9R28Reference

—

Ag front

11.2R24 (4WD)Reference

—

Ag rear

14.9R28Reference

—

Length

363 cmReference

336 cmReference

Height

238 cmReference

—

2WD Wheelbase

—

223 cmReference

4WD Wheelbase

—

219 cmReference

2WD Rear tire

—

16.9-28Reference

2WD Standard tires (ag)

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Front: 7.50-16. Rear: 16.9-28Reference

4WD Standard tires (ag)

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Front: 12.4-20. Rear: 16.9-28Reference

2WD Optional tires (ag)

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Front: 7.50-16. Rear: 12.4-36Reference

4WD Optional tires (ag)

—

Front: 11.2-24. Rear: 12.4-36Reference

2WD Height (cab)

—

249 cmReference

4WD Height (cab)

—

252 cmReference

2WD Weight

—

2960 kgReference

4WD Weight

—

3140 kgReference

2WD Front tread

—

139 to 189 cmReference

4WD Front tread

—

154 to 187 cmReference

Rear tread

—

150 to 199 cmReference

Variants

55-90

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2WDReference

55-90DT

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4WDReference

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.