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Fiat 780 vs Fiat 80-66S
Verdict: Fiat 780 vs Fiat 80-66S
The Fiat 780 and the Fiat 80-66S are both tractors — here is how they stack up on the figures that matter. Fiat 80-66S leads on rated power with 79 hp against 78 hp. Fiat 80-66S is the lighter machine (5,798 kg vs 6,482 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). In short: choose the Fiat 80-66S for outright pulling power, or the Fiat 780 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.
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Fit & specs
Fiat
62
Fit score
Best match
Clear
Fiat
62
Fit score
Best match
Clear
Rated power
78 hp
79 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
FiatReference
FiatReference
Drive
4x4 MFWD 4WD (780DT)Reference
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Final drives
planetaryReference
—
Steering
hydrostatic powerReference
—
Trailer brakes
hydraulicReference
—
Variants
780
2WDReference
—
780DT
4WDReference
—
Engine
Four gears in four ranges.Reference
liquid-cooledReference
Fuel tank
79.9 LReference
—
Engine
58.2 kWReference
58.8 kWReference
Displacement
3.7 LReference
3.6 LReference
Bore/Stroke
103 x 110 mmReference
100 x 115 mmReference
Power
58.2 kWReference
58.8 kWReference
Fuel system
direct injectionReference
—
Compression
17:1Reference
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Rated RPM
2440Reference
2500Reference
Operating RPM
1000-2440Reference
—
Starter volts
12Reference
12Reference
Starter
—
electricReference
Transmission
Gears
16 forward and 4 reverseReference
20 forward and 12 reverseReference
PTO & Hydraulics
Type
open centerReference
creeperReference
Pump flow
25.8 lpmReference
—
Rear Type
IIReference
—
Control
position and draft controlReference
—
Rear lift
2400 kgReference
3564 kgReference
Rear Arms
telecoping (optional)Reference
—
Rear PTO
independentReference
—
Rear PTO Type
1000 (1.75)Reference
540/1000Reference
Dimensions
2WD Wheelbase
226 cmReference
230 cmReference
4WD Wheelbase
227 cmReference
224 cmReference
Weight
6482 to 7056 poundsReference
5798 to 6526 poundsReference
Front tire
7.50-18Reference
7.50-18Reference
Rear tire
18.4x30 (2WD)Reference
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Standard tires (ag)
Front: 11.2/10-28. Rear: 13.6/12-38 (4WD)Reference
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Length
361 cmReference
—
Width
185 cmReference
—
Height (steering wheel)
180 cmReference
—
2WD Weight
2940 kgReference
—
4WD Weight
3200 kgReference
—
4WD Ground clearance
45 cmReference
43 cmReference
2WD Ground clearance
51 cmReference
52 cmReference
Front tread
150/160/169/180/193 cmReference
—
Rear tread
139/150/160/169/180/189/199/210 cmReference
139 to 199 cmReference
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 Front tread
—
140 to 190 cmReference
4WD Front tread
—
155 to 200 cmReference
2WD Steering wheel
—
167 cmReference
4WD Steering wheel
—
169 cmReference
Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
—
Battery volts
12Reference
12Reference
Battery AH
120Reference
—
Fiat 80-66S Height
2WD Hood
—
149 cmReference
4WD Hood
—
151 cmReference
ROPS
—
251 cmReference
Cab
—
251 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.