Tractor · 1985Unverified
Hesston 55-66
Hesston 55-66 — 66 Series · 46 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
46 hp
Max power
28.6 kW
Weight
4851 to 5402 pounds
Hover a source tag to verify
Overview
ManufacturerHesston (a part of Fiat)Reference
Utility tractorReference
Original price was $17,400 in 1990Reference
Two- or four-wheel driveReference
Power steeringReference
Mechanical wet disc brakesReference
Four-post ROPS. Canopy optional.Reference
Variants
55-66utility 2WDReference
55-66DTutility 4WDReference
Engine
Fiat 2.7L 3-cyl dieselReference
Fuel tank72.7 LReference
Engine41.0 kWReference
Drawbar (claimed)28.3 kWReference
Drawbar (tested)28.6 kWReference
Fiat 8035.06Reference
dieselReference
3-cylinderReference
liquid-cooledReference
Displacement2.7 LReference
Bore/Stroke100 x 115 mmReference
Power41.0 kWReference
Compression17:1Reference
Rated RPM2500Reference
StarterelectricReference
Starter volts12Reference
Power at rated engine speed34.1 kWReference
Max power28.6 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)34.2 kWReference
PTO (tested)34.1 kWReference
Typeopen centerReference
Pressure186.2 barReference
Valves0 to 3Reference
Total flow41.6 lpmReference
Rear TypeI/IIReference
Controlposition and lower-link draft controlReference
Rear lift1778 kgReference
Rear PTOindependentReference
Rear PTO Type540/groundReference
Power at rated PTO speed33.4 kWReference
Dimensions
2WD Wheelbase217 cmReference
4WD Wheelbase211 cmReference
Weight4851 to 5402 poundsReference
Front tire6.50-16Reference
2WD Rear tire13.6-28Reference
2WD Standard tires (ag)Front: 6.50-16. Rear: 13.6-28Reference
4WD Standard tires (ag)Front: 9.5-24. Rear: 16.9-28Reference
2WD Length330 cmReference
4WD Length337 cmReference
2WD Clearance (front axle)46 cmReference
4WD Clearance (front axle)36 cmReference
2WD Front tread139 to 189 cmReference
4WD Front tread144 to 187 cmReference
Rear tread132 to 192 cmReference
2WD Shipping2200 kgReference
4WD Shipping2450 kgReference
2WD Operating2399 kgReference
Ballasted2980 kgReference
Steering wheel161 cmReference
Hesston 55-66 attachments
front-end loaderReference
Electrical
Charging systemalternatorReference
Charging amps33Reference
Battery volts12Reference
Hesston 55-66 Height
Hood143 cmReference
2WD ROPS234 cmReference
4WD ROPS241 cmReference
Test results
Diesel 12-speed 2WDApril 15 - 29, 1985Link: Nebraska Tractor Test 1560 fileReference
PTO performanceReference
Fuel use11.4 l/hourReference
Fuel use10.2 l/hourReference
Drawbar performanceReference
Speeds
With 16.9-28 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.