Hesston 55-66
The Hesston 55-66 is a tractor produced by Hesston. It is equipped with a 165 ci 2.7 L engine. The rated power output is 55 hp 41.0 kW. Transmission: 20 forward and 8 reverse. Operating weight: 4851 to 5402 pounds.
Overview
![]() | 1985 - 1989
66 SeriesUtility tractor |
|---|---|
1985 - 1989 | |
66 Series | |
Utility tractor | |
1985 - 1989 | |
|---|---|
66 Series | |
Utility tractor |
Production | |
|---|---|
Manufacturer | Hesston (a part of Fiat) |
Utility tractor | |
Original price was $17,400 in 1990 | |
Variants | |
|---|---|
55-66 | utility 2WD |
55-66DT | utility 4WD |
Hesston 55-66 Engine | |
|---|---|
Fiat 2.7L 3-cyl diesel | |
Fuel tank | 19.2 gal
72.7 L |
Engine details ... | |
Hesston 55-66 Transmissions | |
|---|---|
12-speed partially synchronized | |
12-speed mechanical shuttle | |
20-speed creeper | |
Transmission details ... |
Hesston 55-66 Power | |
|---|---|
Engine | 55 hp
41.0 kW |
Drawbar (claimed) | 38 hp
28.3 kW |
PTO (claimed) | 45.8 hp
34.2 kW |
Drawbar (tested) | 38.39 hp
28.6 kW |
PTO (tested) | 45.78 hp
34.1 kW |
Performance test details ... | |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Power steering | |
Mechanical wet disc brakes | |
Four-post ROPS. Canopy optional. |
Photos | |
|---|---|
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Hesston 55-66 photos... |
Hydraulics | |
|---|---|
Type | open center |
Pressure | 2700 psi
186.2 bar |
Valves | 0 to 3 |
Total flow | 11 gpm
41.6 lpm |
Tractor hitch | |
|---|---|
Rear Type | I/II |
Control | position and lower-link draft control |
Rear lift | 3920 lbs
1778 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540/ground |
Dimensions & Tires | |
|---|---|
2WD Wheelbase | 85.6 inches
217 cm |
4WD Wheelbase | 83.4 inches
211 cm |
Weight | 4851 to 5402 pounds |
Front tire | 6.50-16 |
2WD Rear tire | 13.6-28 |
Full dimensions and tires ... | |
Hesston 55-66 attachments | |
|---|---|
front-end loader | |
Attachment details ... |
Electrical | |
|---|---|
Charging system | alternator |
Charging amps | 33 |
Battery volts | 12 |
References | |
|---|---|
![]() | |
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
![]() | 1985 - 1989
66 SeriesUtility tractor |
|---|---|
1985 - 1989 | |
66 Series | |
Utility tractor | |
1985 - 1989 | |
|---|---|
66 Series | |
Utility tractor |
Engine Detail | |
|---|---|
Fiat 8035.06 | |
diesel | |
3-cylinder | |
liquid-cooled | |
Displacement | 165 ci
2.7 L |
Bore/Stroke | 3.937x4.528 inches
100 x 115 mm |
Power | 55 hp
41.0 kW |
Compression | 17:1 |
Rated RPM | 2500 |
Starter | electric |
Starter volts | 12 |
Transmission
![]() | 1985 - 1989
66 SeriesUtility tractor |
|---|---|
1985 - 1989 | |
66 Series | |
Utility tractor | |
1985 - 1989 | |
|---|---|
66 Series | |
Utility tractor |
Transmission options | |
|---|---|
12-speed partially synchronized | |
12-speed mechanical shuttle | |
20-speed creeper |
Transmission | |
|---|---|
Type | partially synchronized |
Gears | 12 forward and 4 reverse |
Four gears (1-4) in three ranges (I-III). Shifts between gears are synchronized. | |
Speeds | |
|---|---|
With 16.9-28 rear tires. | |
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Transmission | |
|---|---|
Type | mechanical shuttle |
Gears | 12 forward and reverse |
Four gears (1-4) in three ranges (I-III) with shuttle. | |
Speeds | |
|---|---|
With 16.9-28 rear tires. | |
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Transmission | |
|---|---|
Type | creeper |
Gears | 20 forward and 8 reverse |
Four gears (1-4) in three ranges (I-III) with normal and creeper ranges. | |
Speeds | |
|---|---|
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Dimensions
![]() | 1985 - 1989
66 SeriesUtility tractor |
|---|---|
1985 - 1989 | |
66 Series | |
Utility tractor | |
1985 - 1989 | |
|---|---|
66 Series | |
Utility tractor |
Hesston 55-66 Tires | |
|---|---|
2WD Standard tires (ag) | Front: 6.50-16. Rear: 13.6-28 |
4WD Standard tires (ag) | Front: 9.5-24. Rear: 16.9-28 |
Dimensions | |
|---|---|
2WD Wheelbase | 85.6 inches
217 cm |
4WD Wheelbase | 83.4 inches
211 cm |
2WD Length | 130 inches
330 cm |
4WD Length | 133 inches
337 cm |
2WD Clearance (front axle) | 18.5 inches
46 cm |
4WD Clearance (front axle) | 14.5 inches
36 cm |
2WD Front tread | 55.1 to 74.75 inches
139 to 189 cm |
4WD Front tread | 56.9 to 73.75 inches
144 to 187 cm |
Rear tread | 52.1 to 75.75 inches
132 to 192 cm |
Hesston 55-66 Weight | |
|---|---|
2WD Shipping | 4851 lbs
2200 kg |
4WD Shipping | 5402 lbs
2450 kg |
2WD Operating | 5290 lbs
2399 kg |
Ballasted | 6570 lbs
2980 kg |
Hesston 55-66 Height | |
|---|---|
Steering wheel | 63.5 inches
161 cm |
Hood | 56.5 inches
143 cm |
2WD ROPS | 92.5 inches
234 cm |
4WD ROPS | 95 inches
241 cm |
Tests
![]() | 1985 - 1989
66 SeriesUtility tractor |
|---|---|
1985 - 1989 | |
66 Series | |
Utility tractor | |
1985 - 1989 | |
|---|---|
66 Series | |
Utility tractor |
Nebraska Tractor Test 1560 | |
|---|---|
Diesel 12-speed 2WD
April 15 - 29, 1985
Link: Nebraska Tractor Test 1560 file | |
PTO performance | |
Power at rated engine speed | 45.78 hp
34.1 kW |
Fuel use | 3.0 gal/hour
11.4 l/hour |
Power at rated PTO speed | 44.84 hp
33.4 kW |
Fuel use | 2.7 gal/hour
10.2 l/hour |
Drawbar performance | |
Max power | 38.39 hp
28.6 kW |
Fuel use | 3.0 gal/hour
11.4 l/hour |
Attachments
![]() | 1985 - 1989
66 SeriesUtility tractor |
|---|---|
1985 - 1989 | |
66 Series | |
Utility tractor | |
1985 - 1989 | |
|---|---|
66 Series | |
Utility tractor |
Related models
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- 55
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- 1990 - 1990
Hesston 55-56
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- 55
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Hesston 580
- Power:
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- 1981 - 1984
Hesston 566
- Power:
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- Production years:
- 1983 - 1984
Hesston 586
- Power:
- 56.7
- Production years:
- 1988 - 1988





