Tractor · 1985Unverified
Hesston 80-66
Hesston 80-66 — 66 Series · 70 hp. Reference specifications; pending source verification.
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
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.