Introduction
Fiat 80-66 Utility Tractor
The Fiat 80-66 is a utility tractor produced between 1985 and 1991. It belongs to the 70-66 series and was designed to provide reliable mechanical performance for diverse agricultural applications.
Engine and Power
The tractor is powered by a 3.9-liter, four-cylinder liquid-cooled diesel engine. It generates 80 hp (59.7 kW) at a rated speed of 2500 RPM. The engine includes an ether-based pre-heating system for cold-start assistance and utilizes a 12-volt electrical starter.
Transmission Options
The 80-66 features three transmission configurations to suit specific operational needs. These include a 12-speed partially synchronized version, a 12-speed mechanical shuttle transmission, and a 20-speed creeper transmission. All configurations utilize a four-gear layout across three ranges.
Hydraulics and Hitch
The hydraulic system is an open-center type providing a total flow of 11 gpm (41.6 lpm) at a pressure of 2700 psi (186.2 bar). The rear hitch is a Category II type, offering position and lower-link draft control with a maximum lift capacity of 5194 lbs (2355 kg).
Mechanical and Dimensions
Available in both two-wheel and four-wheel drive variants, the tractor is equipped with power steering and differential mechanical wet disc brakes. The operator environment features a four-post ROPS structure, with an optional canopy available for sun protection.
Conclusion
With its flexible transmission options, 80 hp engine, and robust hydraulic lift capacity, the Fiat 80-66 serves as a versatile utility tractor suitable for general farm work and field operations requiring consistent power and control.
Production Information of Fiat-Hesston, 80-66
- Original price was $26,500 in 1990
- Utility tractor
| Distributor | Hesston |
|---|---|
| Manufacturer | Fiat |
Dimension and Tires Information of Fiat-Hesston, 80-66
| 2WD Front tread | 55.1 to 74.75 inches [139 to 189 cm] |
|---|---|
| 2WD Wheelbase | 90.7 inches [230 cm] |
| 2WD Clearance (front axle) | 21.5 inches [54 cm] |
| 4WD Length | 143 inches [363 cm] |
| 4WD Wheelbase | 88.5 inches [224 cm] |
| 4WD Front tread | 60.25 to 77 inches [153 to 195 cm] |
| 4WD Clearance (front axle) | 16 inches [40 cm] |
| 2WD Length | 139 inches [353 cm] |
| Rear tread | 55.1 to 78.75 inches [139 to 200 cm] |
| 2WD Standard tires (ag) | Front: 7.50-16. Rear: 18.4-30 |
|---|---|
| 4WD Standard tires (ag) | Front: 12.4-24. Rear: 18.4-30 |
Engine Specifications of Fiat-Hesston, 80-66
- Liquid-cooled
- Diesel
- 4-cylinder
| Starter | Electric |
|---|---|
| Displacement | 238.5 ci [3.9 L] |
| Pre-heating | Ether |
| Bore/Stroke | 4.094x4.527 inches [104 x 115 mm] |
| Starter volts | 12 |
| Rated RPM | 2500 |
| Compression | 17:1 |
| Power | 80 hp [59.7 kW] |
Transmission Information of Fiat-Hesston, 80-66
Transmission variants 1
- Four gears (1-4) in three ranges (I-III). Shifts between gears are synchronized.
| Type | Partially synchronized |
|---|---|
| Gears | 12 forward and 4 reverse |
Transmission variants 2
- Four gears (1-4) in three ranges (I-III) with shuttle.
| Type | Mechanical shuttle |
|---|---|
| Gears | 12 forward and reverse |
Transmission variants 3
- Four gears (1-4) in three ranges (I-III) with normal and creeper ranges.
| Type | Creeper |
|---|---|
| Gears | 20 forward and 8 reverse |
- 12-speed partially synchronized
- 12-speed mechanical shuttle
- 20-speed creeper
Mechanical Specs of Fiat-Hesston, 80-66
- Two- or four-wheel drive
- Four-post ROPS. Canopy optional.
- Power steering
- Differential mechanical wet disc brakes
Power Information of Fiat-Hesston, 80-66
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 540/ground |
| Rear PTO Type(optional) | 540/1000 |
Hydraulics Specifications of Fiat-Hesston, 80-66
| Type | Open center |
|---|---|
| Total flow | 11 gpm [41.6 lpm] |
| Pressure | 2700 psi [186.2 bar] |
| Valves | 1 to 3 |
Three-Point Hitch of Fiat-Hesston, 80-66
| Rear Type | II |
|---|---|
| Control | Position and lower-link draft control |
| Rear lift | 5194 lbs [2355 kg] |
Electrical System of Fiat-Hesston, 80-66
| Charging system | Alternator |
|---|---|
| Charging amps | 33 |
| Battery volts | 12 |
Where it sits
With 80 HP, the Fiat-Hesston 80-66 sits just above 70-66 (70 HP) in Fiat-Hesston's range. Its power puts it in the 61th percentile of 1980s models in our database (2052 machines).
Frequently asked questions
How much horsepower does the Fiat-Hesston 80-66 have?
The Fiat-Hesston 80-66 delivers 80 HP.
What years was the Fiat-Hesston 80-66 produced?
The Fiat-Hesston 80-66 was produced in 1985-1991.
What engine does the Fiat-Hesston 80-66 have?
The Fiat-Hesston 80-66 is powered by a Diesel, 4-cylinder engine.
What transmission does the Fiat-Hesston 80-66 use?
The Fiat-Hesston 80-66 uses a Partially synchronized transmission.
Is the Fiat-Hesston 80-66 4WD?
The Fiat-Hesston 80-66 is available in 2WD/4WD.