Compare/Fiat 540 vs Fiat 56-66S

Fiat 540 vs Fiat 56-66S

Verdict: Fiat 540 vs Fiat 56-66S

The Fiat 540 and the Fiat 56-66S are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 54 hp. Fiat 540 is the lighter machine (4,630 kg vs 4,685 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Fiat 56-66S is the newer design (1992 vs 1973). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer 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

54 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

FiatReference

Engine

With 12-28 rear tires.Reference

liquid-cooledReference

Fuel tank

54.1 LReference

—

Engine

40.3 kWReference

40.5 kWReference

Displacement

2.6 LReference

2.7 LReference

Bore/Stroke

100 x 110 mmReference

100 x 115 mmReference

Power

40.3 kWReference

40.5 kWReference

Compression

17:1Reference

—

Rated RPM

2600Reference

2500Reference

Starter

—

electricReference

Starter volts

—

12Reference

Transmission

Type

gearReference

creeperReference

Gears

8 forward and 2 reverseReference

20 forward and 8 reverseReference

PTO & Hydraulics

Pump flow

23.5 lpmReference

—

Rear Type

II/IReference

—

Rear lift

1549 kgReference

2125 kgReference

Rear PTO Type

540 (1.375)Reference

540/1000Reference

Dimensions

Wheelbase

195 cmReference

—

Weight

4630 to 5181 poundsReference

4685 to 5236 poundsReference

Front tire

7.50-16Reference

5.50-16Reference

Rear tire

12.4-32Reference

—

Ag front

9.50-20 (4WD)Reference

—

Ag rear

12.4-32Reference

—

Length

309 cmReference

—

2WD Weight

2100 kgReference

2125 kgReference

4WD Weight

2350 kgReference

2375 kgReference

2WD Wheelbase

—

199 cmReference

4WD Wheelbase

—

190 cmReference

2WD Rear tire

—

12.4/11-28Reference

2WD Standard tires (ag)

—

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

4WD Standard tires (ag)

—

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

2WD Length

—

297 cmReference

4WD Length

—

296 cmReference

2WD Ground clearance

—

44 cmReference

4WD Ground clearance

—

33 cmReference

2WD Front tread

—

130 to 180 cmReference

4WD Front tread

—

138 to 181 cmReference

Rear tread

—

120 to 180 cmReference

Steering wheel

—

145 cmReference

Speeds

Electrical

Ground

—

negativeReference

Battery volts

—

12Reference

Fiat 56-66S Height

Hood

—

127 cmReference

Cab

—

224 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.