Compare/Hesston 666 vs Hesston 70-66

Hesston 666 vs Hesston 70-66

Verdict: Hesston 666 vs Hesston 70-66

The Hesston 666 and the Hesston 70-66 are both tractors — here is how they stack up on the figures that matter. Hesston 70-66 leads on rated power with 63 hp against 62 hp. Hesston 70-66 is the newer design (1985 vs 1983). In short: choose the Hesston 70-66 for outright pulling power, or the Hesston 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

Acreage600 acBudgetMain crop / use

Fit & specs

Hesston

Fit score

Best match

Clear

Hesston

Fit score

Best match

Clear

Rated power

62 hp

63 hp

Confidence

40%

Guide price

—

Overview

Distributor

HesstonReference

Manufacturer

FiatReference

Four synchronized gears in three ranges.Reference

Four gears (1-4) in three ranges (I-III) with normal and creeper ranges.Reference

Original price

$19,600 (1984)Reference

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Steering

hydrostatic powerReference

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Variants

666

similar Fiat modelReference

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666DT

4WDReference

—

666HC

high-cropReference

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70-66

—

utility 2WD[6073]Reference

70-66DT

—

utility 4WD[6073]Reference

70-66ORDT

—

orchard 4WDReference

70-66HC

—

high-cropReference

70-66HCDT

—

high-crop 4WDReference

Engine

Fuel tank

72.7 LReference

Drawbar (claimed)

40.5 kWReference

40.3 kWReference

Drawbar (tested)

39.6 kWReference

40.4 kWReference

Displacement

3.5 LReference

3.6 LReference

Bore/Stroke

100 x 110 mmReference

100 x 115 mmReference

Starter volts

12Reference

Power at rated engine speed

46.5 kWReference

46.8 kWReference

Max power

39.6 kWReference

40.4 kWReference

Engine

—

52.2 kWReference

Power

—

52.2 kWReference

Compression

—

17:1Reference

Rated RPM

—

2500Reference

Starter

—

electricReference

Transmission

Gears

20 forward and 8 reverseReference

PTO & Hydraulics

PTO (claimed)

46.2 kWReference

46.8 kWReference

PTO (tested)

46.5 kWReference

46.8 kWReference

Type

creeperReference

Pressure

186.2 barReference

—

Valves

1 or 2Reference

1 to 3Reference

Pump flow

41.6 lpmReference

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Rear Type

I/IIReference

Rear PTO

independentReference

Rear PTO Type

540Reference

540/groundReference

Power at rated PTO speed

45.0 kWReference

46.8 kWReference

Total flow

—

41.6 lpmReference

Control

—

position and lower-link draft controlReference

Rear lift

—

2355 kgReference

Dimensions

Wheelbase

224 cmReference

—

Weight

5689 to 6350 poundsReference

5689 to 6510 poundsReference

Front tire

7.50-16Reference

Rear tire

14.9-30Reference

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Ag front

9.5-24 (4WD)Reference

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Ag rear

14.9-30Reference

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Length

363 cmReference

—

Operating weight

2880 kgReference

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Ground clearance

40 cmReference

—

2WD Wheelbase

—

230 cmReference

4WD Wheelbase

—

224 cmReference

2WD Rear tire

—

14.9-30Reference

2WD Standard tires (ag)

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Front: 7.50-16. Rear: 14.9-30Reference

4WD Standard tires (ag)

—

Front: 9.5-24. Rear: 14.9-30Reference

2WD Length

—

353 cmReference

4WD Length

—

363 cmReference

2WD Clearance (front axle)

—

52 cmReference

4WD Clearance (front axle)

—

41 cmReference

2WD Front tread

—

139 to 189 cmReference

4WD Front tread

—

153 to 195 cmReference

Rear tread

—

139 to 200 cmReference

2WD Shipping

—

2580 kgReference

4WD Shipping

—

2880 kgReference

4WD Operating

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2952 kgReference

Ballasted

—

3948 kgReference

Steering wheel

—

165 cmReference

Electrical

Charging system

alternatorReference

Charging amps

33Reference

Battery volts

—

12Reference

Hesston 666 Height

Hood

149 cmReference

Exhaust

246 cmReference

—

Test results

Fuel use

13.2 l/hourReference

13.6 l/hourReference

Hesston 70-66 attachments

Hesston 70-66 Height

ROPS

—

247 cmReference

Speeds

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.