Fiat-Hesston

Hesston 566

The Hesston 566 is a utility tractor built by Fiat and distributed by Hesston from 1983 to 1984. It was manufactured in Modena, Italy. The tractor features a Fiat 2.8L 3-cylinder liquid-cooled diesel engine producing a claimed 51 hp at the PTO. It offers multiple transmission options including 12-speed synchronized and 20-speed variants. The 566 is available in 2WD and 4WD (566DT) configurations with hydrostatic power steering and mechanical wet disc brakes. Hydraulics are open center type with 2700 psi pressure and 11 gpm pump flow. The tractor has a rear independent PTO with 540 rpm. Dimensions vary slightly between 2WD and 4WD models, with wheelbase around 85.6 inches (2WD) and 83.4 inches (4WD), and operating weights from 4,901 to 5,452 lbs. Tires and height also differ between drive types. Electrical system includes a 33 amp alternator charging system. The Hesston 566 is part of a series including the 466 and 666 models.
Power56 hp[P]
Founded1983 - 1984
Model566

Technical Specifications

Detailed specifications and technical data for Hesston 566

Power
PTO (claimed)51 hp (38.0 kW)
Tires
Ag rear14.9-28 (2WD), 16.9-28 (4WD)
Ag front7.50-16 (2WD), 9.5-24 (4WD)
Engine
Typediesel
ModelFiat 8035.4
Coolingliquid-cooled
Cylinders3-cylinder
Fuel tank19.2 gal (72.7 L)
Bore/Stroke4.05x4.33 inches (103 x 110 mm)
Displacement168 ci (2.8 L)
Starter volts12
Height
Hood57 inches (2WD) (144 cm), 58 inches (4WD) (147 cm)
Exhaust94 inches (238 cm)
Dimensions
Length130 inches (2WD) (330 cm), 133 inches (4WD) (337 cm)
Wheelbase85.6 inches (2WD) (217 cm), 83.4 inches (4WD) (211 cm)
Ground clearance20 inches (2WD front axle) (50 cm), 17 inches (4WD front axle) (43 cm), 14 inches (4WD front differential) (35 cm)
Operating weight4,901 lbs (2WD) (2223 kg), 5,452 lbs (4WD) (2473 kg)
Electrical
Charging amps33
Charging systemalternator
Hydraulics
Typeopen center
Valves1 or 2
Pressure2700 psi (186.2 bar)
Pump flow11 gpm (41.6 lpm)
Mechanical
ROPSFour-post ROPS standard. Optional canopy.
Drive4x2 2WD, 4x4 MFWD 4WD (566DT)
BrakesMechanical wet disc brakes
Steeringhydrostatic power
Production
TypeUtility tractor
Built inModena, Italy
Variants566DT 4WD
DistributorHesston
ManufacturerFiat
Original price$17,720 (1984)
Years produced1983 - 1984
Transmission
Typesynchronized
Gears12 forward and 4 reverse
NotesFour synchronized gears in three ranges.
Options12-speed synchronized, 12-speed, 20-speed
Tractor hitch
Rear TypeI/II
Power Take-off (PTO)
Rear PTOindependent
Rear PTO Type540