Search
Fiat 666 vs Fiat 70-66S
Verdict: Fiat 666 vs Fiat 70-66S
The Fiat 666 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 6,700 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 1982). In short: choose the Fiat 70-66S for outright pulling power, or the Fiat 666 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.
Tune the fit score
Tell us about your operation
Fit & specs
Fiat
62
Fit score
Best match
Clear
Fiat
62
Fit score
Best match
Clear
Rated power
68 hp
69 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
FiatReference
FiatReference
With 18.4/15-30 rear tires.Reference
liquid-cooledReference
Final drives
spur gearReference
—
Differential lock
mechanical rearReference
—
Trailer brakes
hydraulicReference
—
Variants
666
similar Hesston modelReference
—
666DT
4WDReference
—
Engine
Fuel tank
72.7 LReference
—
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
Pre-heating
thermostartReference
—
Rated RPM
2500Reference
2500Reference
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Oil capacity
44.8 LReference
—
Transmission
Gears
20 forward and 8 reverseReference
20 forward and 12 reverseReference
Clutch
dry discReference
—
PTO & Hydraulics
Type
creeperReference
creeperReference
Pump flow
33.7 lpmReference
—
Rear Type
II/IReference
—
Control
position and draft controlReference
—
Rear lift
3139 kgReference
3564 kgReference
Rear PTO
independentReference
—
Rear PTO Type
540/1000 (1.375)Reference
540/1000Reference
Dimensions
2WD Wheelbase
230 cmReference
230 cmReference
4WD Wheelbase
225 cmReference
224 cmReference
Weight
6700 to 7275 poundsReference
5490 to 6151 poundsReference
Front tire
7.50-16Reference
7.50-18Reference
2WD Rear tire
16.9-30Reference
13.6/12-36Reference
2WD Standard tires (ag)
Front: 7.50-16. Rear: 16.9-30Reference
Front: 7.50-18. Rear: 13.6/12-36Reference
4WD Standard tires (ag)
Front: 11.2-24. Rear: 16.9-30Reference
Front: 12.4/11-24. Rear: 13.6/12-36Reference
Ag front
7.50-20Reference
—
Ag rear
13.6/12-38Reference
—
Length
393 cmReference
—
2WD Weight
3039 kgReference
—
4WD Weight
3299 kgReference
—
2WD Front tread
139 to 189 cmReference
140 to 190 cmReference
Rear tread
139 to 199 cmReference
139 to 199 cmReference
Steering wheel
167 cmReference
—
2WD Length
—
346 cmReference
4WD Length
—
346 cmReference
2WD ROPS Weight
—
2490 kgReference
4WD ROPS Weight
—
2790 kgReference
2WD Ground clearance
—
52 cmReference
4WD Ground clearance
—
41 cmReference
4WD Front tread
—
156 to 199 cmReference
2WD Steering wheel
—
160 cmReference
4WD Steering wheel
—
166 cmReference
Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
—
Battery volts
12Reference
12Reference
Battery AH
120Reference
—
Fiat 666 Height
Hood
148 cmReference
—
ROPS
245 cmReference
249 cmReference
Exhaust
241 cmReference
—
Speeds
Fiat 70-66S Height
2WD Hood
—
147 cmReference
4WD Hood
—
149 cmReference
Cab
—
240 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.