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Hesston 70-66

The Hesston 70-66 is a tractor produced by Hesston. It is equipped with a 220.5 ci 3.6 L engine. The rated power output is 70 hp 52.2 kW. Transmission: 20 forward and 8 reverse. Operating weight: 5689 to 6510 pounds.

Engine Power
70 hp 52.2 kW
Fuel & Capacities
19.2 gal 72.7 L
Transmission
20 forward and 8 reverse
Operating Weight
5689 to 6510 pounds

Hesston 70-66 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 70-66 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 $23,400 in 1990
Variants
70-66
utility 2WD[6073]
70-66DT
utility 4WD[6073]
70-66ORDT
orchard 4WD
70-66HC
high-crop
70-66HCDT
high-crop 4WD
Hesston 70-66 Engine
Fiat 3.6L 4-cyl diesel
Fuel tank
19.2 gal 72.7 L
Engine details ...
Hesston 70-66 Power
Engine
70 hp 52.2 kW
Drawbar (claimed)
54 hp 40.3 kW
PTO (claimed)
62.7 hp 46.8 kW
Drawbar (tested)
54.22 hp 40.4 kW
PTO (tested)
62.72 hp 46.8 kW
Performance test details ...
Mechanical
Two- or four-wheel drive
Power steering
Mechanical wet disc brakes
Four-post ROPS. Canopy optional.
Hydraulics
Type
open center
Valves
1 to 3
Total flow
11 gpm 41.6 lpm
Tractor hitch
Rear Type
I/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
Dimensions & Tires
2WD Wheelbase
90.7 inches 230 cm
4WD Wheelbase
88.5 inches 224 cm
Weight
5689 to 6510 pounds
Front tire
7.50-16
2WD Rear tire
14.9-30
Full dimensions and tires ...
Electrical
Charging system
alternator
Charging amps
33
Battery volts
12
References
70-66 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 70-66 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 — 220.5 ci / 3.6 L Diesel

Manufacturer
Fiat 8045.06
Fuel Type
Diesel
Configuration
4-cylinder, liquid-cooled
Displacement
220.5 ci 3.6 L
Bore/Stroke
3.937x4.527 inches 100 x 115 mm
Power
70 hp 52.2 kW
Compression
17:1
Rated RPM
2500
Starter
electric
Starter volts
12
Hesston 70-66 Engine
Hesston 70-66 engine image

Transmission

Hesston 70-66 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 16.9-30 rear tires.
70-66 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 16.9-30 rear tires.
70-66 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 16.9-30 rear tires.
70-66 creeper speeds

Dimensions

Hesston 70-66 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 70-66 Tires
2WD Standard tires (ag)
Front: 7.50-16. Rear: 14.9-30
4WD Standard tires (ag)
Front: 9.5-24. Rear: 14.9-30
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)
20.5 inches 52 cm
4WD Clearance (front axle)
16.5 inches 41 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 70-66 Weight
2WD Shipping
5689 lbs 2580 kg
4WD Shipping
6350 lbs 2880 kg
4WD Operating
6510 lbs 2952 kg
Ballasted
8705 lbs 3948 kg
Hesston 70-66 Height
Steering wheel
65 inches 165 cm
Hood
59 inches 149 cm
ROPS
97.5 inches 247 cm

Tests

Hesston 70-66 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 1561
Diesel 12-speed 4WD April 17 - May 1, 1985
PTO performance
Power at rated engine speed
62.72 hp 46.8 kW
Fuel use
3.7 gal/hour 14.0 l/hour
Power at rated PTO speed
62.71 hp 46.8 kW
Fuel use
3.6 gal/hour 13.6 l/hour
Drawbar performance
Max power
54.22 hp 40.4 kW
Fuel use
3.7 gal/hour 14.0 l/hour

Attachments

Hesston 70-66 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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