666 by Hesston

1983 - 1984

1983 - 1984 Utility tractorFiat built

Series:

Series:566 ← 666 → 766

1983 - 1984

1983 - 1984
Utility tractor
Fiat built

Series:

Series:466 ← 566 → 666

Production

Production
Distributor:Hesston
Manufacturer:Fiat
Type:Utility tractor
Factory:Modena, Italy
Original price:$17,720 (1984)

Variants

Variants
566DT:4WD

Hesston 566 Power

Hesston 566 Power
PTO (claimed):51 hp
38.0 kW

Hesston 566 Engine

Hesston 566 Engine
Fiat 2.8L 3-cyl diesel
Fuel tank:19.2 gal
72.7 L
Engine details ...

Mechanical

Mechanical
Chassis:4x2 2WD
 4x4 MFWD 4WD (566DT)
Steering:hydrostatic power
Brakes:mechanical wet disc
Cab:Four-post ROPS standard. Optional canopy.
Transmissions:12-speed synchronized
 12-speed
 20-speed
Transmission details ...

Hydraulics

Hydraulics
Type:open center
Pressure:2700 psi
186.2 bar
Valves:1 or 2
Pump flow:11 gpm
41.6 lpm

Tractor hitch

Tractor hitch
Rear Type:I/II

Power Take-off (PTO)

Power Take-off (PTO)
Rear PTO:independent
Rear RPM:540

Dimensions & Tires

Dimensions & Tires
Wheelbase:85.6 inches
217 cm (2WD)
 83.4 inches
211 cm (4WD)
Weight:4901 to 5452 pounds
Front tire:7.50-16
Rear tire:14.9-28
Full dimensions and tires ...

Electrical

Electrical
Charging system:alternator
Charging amps:33

Production

Production Distributor:Hesston
Manufacturer:Fiat
Type:Utility tractor
Factory:Modena, Italy
Original price:$19,600 (1984)

Variants

Variants 666DT:4WD
666HC:high-crop

1983 - 1984

1983 - 1984
High-Clearance tractor
Fiat built

Series:

Series:666DT High Crop → 766DT High Crop

Production

Production
Distributor:Hesston
Manufacturer:Fiat
Type:High-Clearance tractor

Variants

Variants
766:utility
766HC:high-crop

Hesston 666DT High Crop Power

Hesston 666DT High Crop Power
PTO (claimed):62 hp
46.2 kW

Hesston 666DT High Crop Engine

Hesston 666DT High Crop Engine
Fiat 3.5L 4-cyl diesel
Fuel tank:19.2 gal
72.7 L
Engine details ...

Mechanical

Mechanical
Chassis:4x4 MFWD 4WD
Steering:power
Brakes:mechanical wet disc
Cab:ROPS.
Transmission:12-speed partially synchronized
Transmission details ...

Hydraulics

Hydraulics
Type:open center
Pressure:2700 psi
186.2 bar
Valves:1
Pump flow:11 gpm
41.6 lpm

Tractor hitch

Tractor hitch
Rear Type:II
Control:position and draft control

Power Take-off (PTO)

Power Take-off (PTO)
Rear PTO:independent
Rear RPM:540 (1.375)

Dimensions & Tires

Dimensions & Tires
Weight:7298 lbs
3310 kg
Front tire:13.6x38
Rear tire:13.6x38
Full dimensions and tires ...

Electrical

Electrical
Ground:negative
Charging system:alternator
Charging amps:33
Battery volts:12

Hesston 666 Power

Hesston 666 Power Drawbar (claimed):54.3 hp
40.5 kW
PTO (claimed):62 hp
46.2 kW
Drawbar (tested):53.13 hp
39.6 kW
PTO (tested):62.40 hp
46.5 kW
power test details ...

1983 - 1984

1983 - 1984
Utility tractor
Fiat built

Series:

Series:566 ← 666 → 766

Nebraska Tractor Test 1485

Nebraska Tractor Test 1485
Diesel 12-speed 4WD
June 6 - 17, 1983
Link: Nebraska Tractor Test 1485 file
PTO performance
Power at rated engine speed:62.40 hp
46.5 kW
Fuel use:3.9 gal/hour
14.8 l/hour
Power at rated PTO speed:60.33 hp
45.0 kW
Fuel use:3.5 gal/hour
13.2 l/hour
Drawbar performance
Max power:53.13 hp
39.6 kW
Fuel use:3.9 gal/hour
14.8 l/hour

Hesston 666 Engine

Hesston 666 Engine Fiat 3.5L 4-cyl diesel Fuel tank:19.2 gal
72.7 L
Engine details ...

1983 - 1984

1983 - 1984
Utility tractor
Fiat built

Series:

Series:566 ← 666 → 766

Engine Detail

Engine Detail
Fiat 8045.02
diesel
4-cylinder
liquid-cooled
Displacement:211 ci
3.5 L
Bore/Stroke:3.94x4.33 inches
100 x 110 mm
Starter volts:12

Mechanical

Mechanical Chassis:4x2 2WD
 4x4 MFWD 4WD (666DT)
Steering:hydrostatic power
Brakes:differential mechanical wet disc
Cab:Four-post ROPS standard. Optional canopy.
Transmissions:12-speed synchronized
 12-speed
 20-speed
Transmission details ...

1983 - 1984

1983 - 1984
Utility tractor
Fiat built

Series:

Series:566 ← 666 → 766

Transmissions overview

Transmissions overview
12-speed synchronized
12-speed
20-speed

Transmission

Transmission
Type:synchronized
Gears:12 forward and 4 reverse
Four synchronized gears in three ranges.

Transmission

Transmission
Gears:12 forward and reverse

Transmission

Transmission
Gears:20 forward and 8 reverse

Hydraulics

Hydraulics Type:open center
Pressure:2700 psi
186.2 bar
Valves:1 or 2
Pump flow:11 gpm
41.6 lpm

Tractor hitch

Tractor hitch Rear Type:I/II

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:independent
Rear RPM:540

Dimensions & Tires

Dimensions & Tires Wheelbase:90.7 inches
230 cm (2WD)
 88.5 inches
224 cm (4WD)
Weight:5689 to 6350 pounds
Front tire:7.50-16
Rear tire:14.9-30
Full dimensions and tires ...

1983 - 1984

1983 - 1984
Utility tractor
Fiat built

Series:

Series:566 ← 666 → 766

Hesston 666 Tires

Hesston 666 Tires
Ag front:7.50-16 (2WD)
 9.5-24 (4WD)
Ag rear:14.9-30

Dimensions

Dimensions
Wheelbase:90.7 inches
230 cm (2WD)
 88.5 inches
224 cm (4WD)
Length:139 inches
353 cm (2WD)
 143 inches
363 cm (4WD)
Operating weight:5,689 lbs
2580 kg (2WD)
 6,350 lbs
2880 kg (4WD)
Ground clearance:23 inches
58 cm (2WD front axle)
 19 inches
48 cm (4WD front axle)
 16 inches
40 cm (4WD front differential)

Hesston 666 Height

Hesston 666 Height
Hood:59 inches
149 cm
Exhaust:96 inches
243 cm (2WD)
 97 inches
246 cm (4WD)

Electrical

Electrical Charging system:alternator
Charging amps:33

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