Compare/Fiat 680 vs Fiat 70-66S

Fiat 680 vs Fiat 70-66S

Verdict: Fiat 680 vs Fiat 70-66S

The Fiat 680 and the Fiat 70-66S are both tractors — here is how they stack up on the figures that matter. Fiat 70-66S leads on rated power with 69 hp against 68 hp. Fiat 70-66S is the lighter machine (5,490 kg vs 5,513 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Fiat 70-66S is the newer design (1992 vs 1978). In short: choose the Fiat 70-66S for outright pulling power, or the Fiat 680 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

Fiat

Fit score

Best match

Clear

Fiat

Fit score

Best match

Clear

Rated power

68 hp

69 hp

Confidence

40%

Guide price

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Overview

Manufacturer

FiatReference

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

liquid-cooledReference

Variants

680

2WDReference

—

680DT

4WDReference

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Engine

Fuel tank

79.9 LReference

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Engine

50.7 kWReference

51.5 kWReference

Displacement

3.5 LReference

3.6 LReference

Bore/Stroke

100 x 110 mmReference

100 x 115 mmReference

Power

50.7 kWReference

51.5 kWReference

Compression

17:1Reference

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Rated RPM

2500Reference

Firing order

1-3-4-2Reference

—

Starter volts

12Reference

Starter

—

electricReference

Transmission

Type

creeperReference

Gears

16 forward and 4 reverseReference

20 forward and 12 reverseReference

PTO & Hydraulics

Pump flow

33.7 lpmReference

—

Rear Type

IIReference

—

Rear lift

2400 kgReference

3564 kgReference

Rear PTO

independentReference

—

Rear PTO Type

540/1000 (1.375)Reference

540/1000Reference

Engine RPM

1000@2410Reference

—

Dimensions

2WD Wheelbase

228 cmReference

230 cmReference

4WD Wheelbase

227 cmReference

224 cmReference

Weight

5513 to 6174 poundsReference

5490 to 6151 poundsReference

Front tire

7.50-18Reference

2WD Rear tire

13.6/12-38Reference

13.6/12-36Reference

2WD Standard tires (ag)

Front: 7.50-18. Rear: 13.6/12-38Reference

Front: 7.50-18. Rear: 13.6/12-36Reference

4WD Standard tires (ag)

Front: 11.2/10-28. Rear: 13.6/12-38Reference

Front: 12.4/11-24. Rear: 13.6/12-36Reference

Optional tires (ag)

Front: 11.2/10-24. Rear: 16.9/14-30Reference

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2WD Length

350 cmReference

346 cmReference

4WD Length

366 cmReference

346 cmReference

2WD Weight

2500 kgReference

—

4WD Weight

2800 kgReference

—

2WD Clearance (front axle)

51 cmReference

—

4WD Clearance (front axle)

45 cmReference

—

2WD Front tread

139 to 189 cmReference

140 to 190 cmReference

4WD Front tread

152 to 195 cmReference

156 to 199 cmReference

Rear tread

139 to 199 cmReference

2WD Steering wheel

179 cmReference

160 cmReference

4WD Steering wheel

180 cmReference

166 cmReference

2WD ROPS Weight

—

2490 kgReference

4WD ROPS Weight

—

2790 kgReference

2WD Ground clearance

—

52 cmReference

4WD Ground clearance

—

41 cmReference

Electrical

Ground

negativeReference

Charging system

alternatorReference

—

Charging amps

33Reference

—

Battery volts

12Reference

Fiat 680 Height

2WD Hood

151 cmReference

147 cmReference

4WD Hood

152 cmReference

149 cmReference

Cab

255 cmReference

240 cmReference

2WD Exhaust

255 cmReference

—

4WD Exhaust

257 cmReference

—

Speeds

Fiat 70-66S Height

ROPS

—

249 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.