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Tractor · 1985Unverified

Hesston 70-66

Name: Hesston 70-66
Brand: Hesston

Hesston 70-66 — 66 Series · 63 hp. Reference specifications; pending source verification.

The Hesston 70-66 is a tractor with a rated power of 63 hp, positioning it at the lighter end of its class. Manufactured from 1985 to 1991, this model features a 4-cylinder diesel liquid-cooled engine and four-wheel drive with a 12-speed gearbox. Its operating weight ranges from 5689 to 6510 pounds. It is suitable for operations covering up to 200 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

63 hp

Max power

40.4 kW

Weight

5689 to 6510 pounds

Catalogue coverage

Variants represented

Richest spec table

85 rows

Recorded power

63 hp

Transmissions

12-speed partially synchronized

Production years

1985-1991

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

DistributorHesstonReference

ManufacturerFiatReference

Utility tractorReference

Original price was $23,400 in 1990Reference

Two- or four-wheel driveReference

Power steeringReference

Mechanical wet disc brakesReference

Four-post ROPS. Canopy optional.Reference

Variants

70-66utility 2WD[6073]Reference

70-66DTutility 4WD[6073]Reference

70-66ORDTorchard 4WDReference

70-66HChigh-cropReference

70-66HCDThigh-crop 4WDReference

Engine

Fiat 3.6L 4-cyl dieselReference

Fuel tank72.7 LReference

Engine52.2 kWReference

Drawbar (claimed)40.3 kWReference

Drawbar (tested)40.4 kWReference

Fiat 8045.06Reference

dieselReference

4-cylinderReference

liquid-cooledReference

Displacement3.6 LReference

Bore/Stroke100 x 115 mmReference

Power52.2 kWReference

Compression17:1Reference

Rated RPM2500Reference

StarterelectricReference

Starter volts12Reference

Power at rated engine speed46.8 kWReference

Max power40.4 kWReference

Transmission

12-speed partially synchronizedReference

12-speed mechanical shuttleReference

20-speed creeperReference

Typepartially synchronizedReference

Gears12 forward and 4 reverseReference

Four gears (1-4) in three ranges (I-III). Shifts between gears are synchronized.Reference

Typemechanical shuttleReference

Gears12 forward and reverseReference

Four gears (1-4) in three ranges (I-III) with shuttle.Reference

TypecreeperReference

Gears20 forward and 8 reverseReference

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

PTO & Hydraulics

PTO (claimed)46.8 kWReference

PTO (tested)46.8 kWReference

Typeopen centerReference

Valves1 to 3Reference

Total flow41.6 lpmReference

Rear TypeI/IIReference

Controlposition and lower-link draft controlReference

Rear lift2355 kgReference

Rear PTOindependentReference

Rear PTO Type540/groundReference

Power at rated PTO speed46.8 kWReference

Dimensions

2WD Wheelbase230 cmReference

4WD Wheelbase224 cmReference

Weight5689 to 6510 poundsReference

Front tire7.50-16Reference

2WD Rear tire14.9-30Reference

2WD Standard tires (ag)Front: 7.50-16. Rear: 14.9-30Reference

4WD Standard tires (ag)Front: 9.5-24. Rear: 14.9-30Reference

2WD Length353 cmReference

4WD Length363 cmReference

2WD Clearance (front axle)52 cmReference

4WD Clearance (front axle)41 cmReference

2WD Front tread139 to 189 cmReference

4WD Front tread153 to 195 cmReference

Rear tread139 to 200 cmReference

2WD Shipping2580 kgReference

4WD Shipping2880 kgReference

4WD Operating2952 kgReference

Ballasted3948 kgReference

Steering wheel165 cmReference

Hesston 70-66 attachments

front-end loaderReference

Electrical

Charging systemalternatorReference

Charging amps33Reference

Battery volts12Reference

Hesston 70-66 Height

Hood149 cmReference

ROPS247 cmReference

Test results

Diesel 12-speed 4WDApril 17 - May 1, 1985Reference

PTO performanceReference

Fuel use14.0 l/hourReference

Fuel use13.6 l/hourReference

Drawbar performanceReference

Speeds

With 16.9-30 rear tires.Reference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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