Compare/Fiat 80-66S vs Fiat 805C

Fiat 80-66S vs Fiat 805C

Verdict: Fiat 80-66S vs Fiat 805C

The Fiat 80-66S and the Fiat 805C are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 79 hp. Fiat 805C is the lighter machine (5,150 kg vs 5,798 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Fiat 80-66S is the newer design (1992 vs 1975). 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

79 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

FiatReference

liquid-cooledReference

Drive

—

crawlerReference

Engine

58.8 kWReference

59.0 kWReference

Displacement

3.6 LReference

4.6 LReference

Bore/Stroke

100 x 115 mmReference

110 x 120 mmReference

Power

58.8 kWReference

59.0 kWReference

Rated RPM

2500Reference

2100Reference

Starter

electricReference

—

Starter volts

12Reference

—

Fuel tank

—

79.9 LReference

Fuel system

—

direct injectionReference

Compression

—

17:1Reference

Firing order

—

1-3-4-2Reference

Starter type

—

electricReference

Coolant capacity

—

16.5 LReference

Transmission

Type

creeperReference

crawlerReference

Gears

20 forward and 12 reverseReference

6 forward and 2 reverseReference

Clutch

—

wet discReference

PTO & Hydraulics

Rear lift

3564 kgReference

—

Rear PTO Type

540/1000Reference

—

Pressure

—

112.7 barReference

Pump flow

—

70.0 lpmReference

Rear Type

—

III/IIReference

Dimensions

2WD Wheelbase

230 cmReference

—

4WD Wheelbase

224 cmReference

—

Weight

5798 to 6526 poundsReference

5150 kgReference

Front tire

7.50-18Reference

—

2WD Rear tire

13.6/12-38Reference

—

2WD Standard tires (ag)

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

—

4WD Standard tires (ag)

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

—

2WD Length

351 cmReference

—

4WD Length

348 cmReference

—

2WD ROPS Weight

2629 kgReference

—

4WD ROPS Weight

2960 kgReference

—

2WD Ground clearance

52 cmReference

—

4WD Ground clearance

43 cmReference

—

2WD Front tread

140 to 190 cmReference

—

4WD Front tread

155 to 200 cmReference

—

Rear tread

139 to 199 cmReference

—

2WD Steering wheel

167 cmReference

—

4WD Steering wheel

169 cmReference

—

Wheelbase

—

182 cmReference

Length

—

372 cmReference

Height

—

160 cmReference

Height (exhaust)

—

227 cmReference

Operating weight

—

5150 kgReference

Ground clearance

—

35 cmReference

Gauge

—

135 to 0 cmReference

Electrical

Ground

negativeReference

Battery volts

12Reference

Charging system

—

alternatorReference

Battery AH

—

143Reference

Fiat 80-66S Height

2WD Hood

149 cmReference

—

4WD Hood

151 cmReference

—

ROPS

251 cmReference

—

Cab

251 cmReference

—

Fiat 805C Tracks

Width

—

174 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.