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Tractor · 1985Unverified

Hesston 80-66

Name: Hesston 80-66
Brand: Hesston

Hesston 80-66 — 66 Series · 70 hp. Reference specifications; pending source verification.

The Hesston 80-66 is a tractor with a rated power of 70 hp, which falls within the mid-range of its class. Manufactured between 1985 and 1991, this model features a 4-cylinder diesel liquid-cooled engine coupled with four-wheel drive and a 12-speed gearbox. The operating weight of the tractor is approximately 5800 to 6535 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

70 hp

Max power

46.4 kW

Weight

5800 to 6535 pounds

Catalogue coverage

Variants represented

Richest spec table

91 rows

Recorded power

70 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 $26,500 in 1990Reference

Two- or four-wheel driveReference

Power steeringReference

Differential mechanical wet disc brakesReference

Four-post ROPS. Canopy optional.Reference

Variants

80-66utility 2WDReference

80-66DTutility 4WDReference

80-66ORorchard 2WDReference

80-66ORDTorchard 4WDReference

80-66HChigh-cropReference

80-66HCDThigh-crop 4WDReference

Engine

Fiat 3.9L 4-cyl dieselReference

Fuel tank72.7 LReference

Engine59.7 kWReference

Drawbar (claimed)46.2 kWReference

Drawbar (tested)46.4 kWReference

Fiat 8045.05Reference

dieselReference

4-cylinderReference

liquid-cooledReference

Displacement3.9 LReference

Bore/Stroke104 x 115 mmReference

Power59.7 kWReference

Pre-heatingetherReference

Compression17:1Reference

Rated RPM2500Reference

StarterelectricReference

Starter volts12Reference

Power at rated engine speed52.5 kWReference

Max power46.4 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)52.2 kWReference

PTO (tested)52.5 kWReference

Typeopen centerReference

Pressure186.2 barReference

Valves1 to 3Reference

Total flow41.6 lpmReference

Rear TypeIIReference

Controlposition and lower-link draft controlReference

Rear lift2355 kgReference

Rear PTOindependentReference

Rear PTO Type540/groundReference

Rear PTO Type540/1000Reference

Power at rated PTO speed51.4 kWReference

Dimensions

2WD Wheelbase230 cmReference

4WD Wheelbase224 cmReference

Weight5800 to 6535 poundsReference

Front tire7.50-16Reference

2WD Rear tire18.4-30Reference

2WD Standard tires (ag)Front: 7.50-16. Rear: 18.4-30Reference

4WD Standard tires (ag)Front: 12.4-24. Rear: 18.4-30Reference

2WD Length353 cmReference

4WD Length363 cmReference

2WD Clearance (front axle)54 cmReference

4WD Clearance (front axle)40 cmReference

2WD Front tread139 to 189 cmReference

4WD Front tread153 to 195 cmReference

Rear tread139 to 200 cmReference

2WD Shipping2630 kgReference

4WD Shipping2925 kgReference

4WD Operating2964 kgReference

Ballasted4263 kgReference

Steering wheel170 cmReference

Hesston 80-66 attachments

front-end loaderReference

Electrical

Charging systemalternatorReference

Charging amps33Reference

Battery volts12Reference

Hesston 80-66 Height

Hood149 cmReference

ROPS254 cmReference

Test results

Diesel 12-speed 4WDOctober 1 - 11, 1984Link: Nebraska Tractor Test 1534 fileReference

PTO performanceReference

Fuel use15.5 l/hourReference

Fuel use15.1 l/hourReference

Drawbar performanceReference

Fuel use15.9 l/hourReference

Max pull3286 kgReference

Speeds

With 18.4-30 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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