Compare/Fiat 50-66S vs Fiat 580

Fiat 50-66S vs Fiat 580

Verdict: Fiat 50-66S vs Fiat 580

The Fiat 50-66S and the Fiat 580 are both tractors — here is how they stack up on the figures that matter. Fiat 580 leads on rated power with 50 hp against 49 hp. Fiat 50-66S is the lighter machine (4,685 kg vs 5,149 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Fiat 50-66S is the newer design (1992 vs 1978). In short: choose the Fiat 580 for outright pulling power, or the Fiat 50-66S if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Acreage600 acBudgetMain crop / use

Fit & specs

Fiat

Fit score

Best match

Clear

Fiat

Fit score

Best match

Clear

Rated power

49 hp

50 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

FiatReference

liquid-cooledReference

Four gears (1-4) plus reverse (R) in four ranges (creeper/low/intermediate/high).Reference

Final drives

—

planetaryReference

Engine

36.8 kWReference

42.7 kWReference

Displacement

2.7 LReference

2.8 LReference

Bore/Stroke

100 x 115 mmReference

103 x 110 mmReference

Power

36.8 kWReference

42.7 kWReference

Rated RPM

2500Reference

2700Reference

Starter

electricReference

—

Starter volts

12Reference

Fuel tank

—

79.9 LReference

Air cleaner

—

dual dry elementReference

Compression

—

17:1Reference

Firing order

—

1-2-3Reference

Transmission

Type

creeperReference

Gears

20 forward and 8 reverseReference

16 forward and 4 reverseReference

PTO & Hydraulics

Rear lift

2125 kgReference

2400 kgReference

Rear PTO Type

540/1000Reference

540 (1.375)Reference

PTO (claimed)

—

37.3 kWReference

Pump flow

—

28.0 lpmReference

Rear Type

—

II/IReference

Rear PTO

—

independentReference

Engine RPM

—

540@2314Reference

Dimensions

2WD Wheelbase

199 cmReference

217 cmReference

4WD Wheelbase

190 cmReference

215 cmReference

Weight

4685 to 5236 poundsReference

5149 to 5766 poundsReference

Front tire

5.50-16Reference

6.00-19Reference

2WD Rear tire

12.4/11-28Reference

12.4/11-36Reference

2WD Standard tires (ag)

Front: 5.50-16. Rear: 12.4/11-28Reference

Front: 6.00-19. Rear: 12.4/11-36Reference

4WD Standard tires (ag)

Front: 7.50-20. Rear: 12.4/11-28Reference

Front: 11.2/10-24. Rear: 12.4/11-36Reference

2WD Length

297 cmReference

332 cmReference

4WD Length

296 cmReference

343 cmReference

2WD Weight

2125 kgReference

2335 kgReference

4WD Weight

2375 kgReference

2615 kgReference

2WD Ground clearance

44 cmReference

—

4WD Ground clearance

33 cmReference

—

2WD Front tread

130 to 180 cmReference

139 to 189 cmReference

4WD Front tread

138 to 181 cmReference

152 to 195 cmReference

Rear tread

120 to 180 cmReference

139 to 199 cmReference

Steering wheel

145 cmReference

—

Optional tires (ag)

—

Front: 9.5/9-24. Rear: 14.9/13-30Reference

2WD Clearance (front axle)

—

48 cmReference

4WD Clearance (front axle)

—

40 cmReference

2WD Steering wheel

—

175 cmReference

4WD Steering wheel

—

177 cmReference

Electrical

Ground

negativeReference

Battery volts

12Reference

Charging system

—

alternatorReference

Charging amps

—

33Reference

Fiat 50-66S Height

Hood

127 cmReference

—

Cab

224 cmReference

249 cmReference

Variants

570

—

orchardReference

580

—

utilityReference

Fiat 580 Height

2WD Hood

—

147 cmReference

4WD Hood

—

148 cmReference

2WD Exhaust

—

250 cmReference

4WD Exhaust

—

251 cmReference

Speeds

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.