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Hesston 80-66

The Hesston 80-66 is a tractor produced by Hesston. It is equipped with a 238.5 ci 3.9 L engine. The rated power output is 80 hp 59.7 kW. Transmission: 20 forward and 8 reverse. Operating weight: 5800 to 6535 pounds.

Engine Power
80 hp 59.7 kW
Fuel & Capacities
19.2 gal 72.7 L
Transmission
20 forward and 8 reverse
Operating Weight
5800 to 6535 pounds

Hesston 80-66 Serial Number & Year Decoder

Find the exact manufacture year of your tractor by checking your chassis serial number below.

Where to Find the Serial NumberThe serial number plate is commonly located on the front frame, tractor transmission housing (right side), or instrument panel badge.

Overview

Hesston 80-66 tractor photo
1985 - 1991 66 SeriesUtility tractorFiat built
1985 - 1991
66 Series
Utility tractor
Fiat built
1985 - 1991
66 Series
Utility tractor
Fiat built
Production
Distributor
Hesston
Manufacturer
Fiat
Utility tractor
Original price was $26,500 in 1990
Variants
80-66
utility 2WD
80-66DT
utility 4WD
80-66OR
orchard 2WD
80-66ORDT
orchard 4WD
80-66HC
high-crop
80-66HCDT
high-crop 4WD
Hesston 80-66 Engine
Fiat 3.9L 4-cyl diesel
Fuel tank
19.2 gal 72.7 L
Engine details ...
Hesston 80-66 Power
Engine
80 hp 59.7 kW
Drawbar (claimed)
62 hp 46.2 kW
PTO (claimed)
70 hp 52.2 kW
Drawbar (tested)
62.21 hp 46.4 kW
PTO (tested)
70.43 hp 52.5 kW
Performance test details ...
Mechanical
Two- or four-wheel drive
Power steering
Differential mechanical wet disc brakes
Four-post ROPS. Canopy optional.
Hydraulics
Type
open center
Pressure
2700 psi 186.2 bar
Valves
1 to 3
Total flow
11 gpm 41.6 lpm
Tractor hitch
Rear Type
II
Control
position and lower-link draft control
Rear lift
5194 lbs 2355 kg
Power Take-off (PTO)
Rear PTO
independent
Rear PTO Type
540/ground
540/1000 OptOptional
Dimensions & Tires
2WD Wheelbase
90.7 inches 230 cm
4WD Wheelbase
88.5 inches 224 cm
Weight
5800 to 6535 pounds
Front tire
7.50-16
2WD Rear tire
18.4-30
Full dimensions and tires ...
Electrical
Charging system
alternator
Charging amps
33
Battery volts
12
References
80-66 references literature
66 Series Tractors 45 to 70 PTO HP published in 1985, by Hesston
66 Series Tractors Models 55-66, 60-66, 70-66, 80-66 - 45 to 70 PTO HP published in 1985, by Hesston

Engine

Hesston 80-66 tractor photo
1985 - 1991 66 SeriesUtility tractorFiat built
1985 - 1991
66 Series
Utility tractor
Fiat built
1985 - 1991
66 Series
Utility tractor
Fiat built

Engine Detail — 238.5 ci / 3.9 L Diesel

Manufacturer
Fiat 8045.05
Fuel Type
Diesel
Configuration
4-cylinder, liquid-cooled
Displacement
238.5 ci 3.9 L
Bore/Stroke
4.094x4.527 inches 104 x 115 mm
Power
80 hp 59.7 kW
Pre-heating
ether
Compression
17:1
Rated RPM
2500
Starter
electric
Starter volts
12
Hesston 80-66 Engine
Hesston 80-66 engine image

Transmission

Hesston 80-66 tractor photo
1985 - 1991 66 SeriesUtility tractorFiat built
1985 - 1991
66 Series
Utility tractor
Fiat built
1985 - 1991
66 Series
Utility tractor
Fiat built
Transmission options
12-speed partially synchronized
12-speed mechanical shuttle
20-speed creeper

Transmission — 12 forward and 4 reverse partially synchronized

Type
partially synchronized
Gears
12 forward and 4 reverse
Four gears (1-4) in three ranges (I-III). Shifts between gears are synchronized.
With 18.4-30 rear tires.
80-66 partially synchronized speeds

Transmission — 12 forward and reverse mechanical shuttle

Type
mechanical shuttle
Gears
12 forward and reverse
Four gears (1-4) in three ranges (I-III) with shuttle.
With 18.4-30 rear tires.
80-66 mechanical shuttle speeds

Transmission — 20 forward and 8 reverse creeper

Type
creeper
Gears
20 forward and 8 reverse
Four gears (1-4) in three ranges (I-III) with normal and creeper ranges.
With 18.4-30 rear tires.
80-66 creeper speeds

Dimensions

Hesston 80-66 tractor photo
1985 - 1991 66 SeriesUtility tractorFiat built
1985 - 1991
66 Series
Utility tractor
Fiat built
1985 - 1991
66 Series
Utility tractor
Fiat built
Hesston 80-66 Tires
2WD Standard tires (ag)
Front: 7.50-16. Rear: 18.4-30
4WD Standard tires (ag)
Front: 12.4-24. Rear: 18.4-30
Dimensions
2WD Wheelbase
90.7 inches 230 cm
4WD Wheelbase
88.5 inches 224 cm
2WD Length
139 inches 353 cm
4WD Length
143 inches 363 cm
2WD Clearance (front axle)
21.5 inches 54 cm
4WD Clearance (front axle)
16 inches 40 cm
2WD Front tread
55.1 to 74.75 inches 139 to 189 cm
4WD Front tread
60.25 to 77 inches 153 to 195 cm
Rear tread
55.1 to 78.75 inches 139 to 200 cm
Hesston 80-66 Weight
2WD Shipping
5800 lbs 2630 kg
4WD Shipping
6450 lbs 2925 kg
4WD Operating
6535 lbs 2964 kg
Ballasted
9400 lbs 4263 kg
Hesston 80-66 Height
Steering wheel
67 inches 170 cm
Hood
59 inches 149 cm
ROPS
100 inches 254 cm

Tests

Hesston 80-66 tractor photo
1985 - 1991 66 SeriesUtility tractorFiat built
1985 - 1991
66 Series
Utility tractor
Fiat built
1985 - 1991
66 Series
Utility tractor
Fiat built
Nebraska Tractor Test 1534
Diesel 12-speed 4WD October 1 - 11, 1984 Link: Nebraska Tractor Test 1534 file
PTO performance
Power at rated engine speed
70.43 hp 52.5 kW
Fuel use
4.1 gal/hour 15.5 l/hour
Power at rated PTO speed
68.91 hp 51.4 kW
Fuel use
4.0 gal/hour 15.1 l/hour
Drawbar performance
Max power
62.21 hp 46.4 kW
Fuel use
4.2 gal/hour 15.9 l/hour
Max pull
7245 lbs 3286 kg

Attachments

Hesston 80-66 tractor photo
1985 - 1991 66 SeriesUtility tractorFiat built
1985 - 1991
66 Series
Utility tractor
Fiat built
1985 - 1991
66 Series
Utility tractor
Fiat built

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