Fiat-Hesston
Hesston 70-66
The Hesston 70-66 is a utility tractor built by Fiat and distributed by Hesston from 1985 to 1991. It is part of the 66 Series and features a Fiat 3.6L 4-cylinder liquid-cooled diesel engine producing 70 hp. The tractor offers multiple transmission options including a 12-speed partially synchronized, 12-speed mechanical shuttle, and a 20-speed creeper. It is available in two- or four-wheel drive configurations with power steering and mechanical wet disc brakes. The tractor has a rear independent PTO with 540/ground speeds and an open center hydraulic system with 1 to 3 valves. Dimensions vary between 2WD and 4WD models, with wheelbases of 90.7 inches and 88.5 inches respectively. The 70-66 supports various attachments including the L330 front-end loader. It was originally priced at $23,400 in 1990.
Power70 hp
Founded1985 - 1991
Model70-66
Technical Specifications
Detailed specifications and technical data for Hesston 70-66
Power
| Engine | 70 hp (52.2 kW) |
|---|---|
| PTO (tested) | 62.72 hp (46.8 kW) |
| PTO (claimed) | 62.7 hp (46.8 kW) |
| Drawbar (tested) | 54.22 hp (40.4 kW) |
| Drawbar (claimed) | 54 hp (40.3 kW) |
Engine
| Type | diesel |
|---|---|
| Model | Fiat 8045.06 |
| Power | 70 hp (52.2 kW) |
| Cooling | liquid-cooled |
| Starter | electric |
| Cylinders | 4-cylinder |
| Fuel tank | 19.2 gal (72.7 L) |
| Rated RPM | 2500 |
| Bore/Stroke | 3.937x4.527 inches (100 x 115 mm) |
| Compression | 17:1 |
| Displacement | 220.5 ci (3.6 L) |
| Starter volts | 12 |
Height
| Hood | 59 inches (149 cm) |
|---|---|
| ROPS | 97.5 inches (247 cm) |
| Steering wheel | 65 inches (165 cm) |
Weight
| Ballasted | 8705 lbs (3948 kg) |
|---|---|
| 2WD Shipping | 5689 lbs (2580 kg) |
| 4WD Shipping | 6350 lbs (2880 kg) |
| 4WD Operating | 6510 lbs (2952 kg) |
Variants
| 70-66 | utility 2WD |
|---|---|
| 70-66DT | utility 4WD |
| 70-66HC | high-crop |
| 70-66HCDT | high-crop 4WD |
| 70-66ORDT | orchard 4WD |
Electrical
| Battery volts | 12 |
|---|---|
| Charging amps | 33 |
| Charging system | alternator |
Hydraulics
| Type | open center |
|---|---|
| Valves | 1 to 3 |
| Total flow | 11 gpm (41.6 lpm) |
Mechanical
| ROPS | Four-post ROPS. Canopy optional. |
|---|---|
| Drive | Two- or four-wheel drive |
| Brakes | Mechanical wet disc brakes |
| Steering | Power steering |
Production
| Type | Utility tractor |
|---|---|
| Years made | 1985 - 1991 |
| Distributor | Hesston |
| Manufacturer | Fiat |
| Original price | $23,400 in 1990 |
Attachments
| Loader | L330 Loader |
|---|---|
| Front-end loader | available |
Transmission
| Creeper | 20 forward and 8 reverse gears, Four gears (1-4) in three ranges (I-III) with normal and creeper ranges. |
|---|---|
| Options | 12-speed partially synchronized, 12-speed mechanical shuttle, 20-speed creeper |
| Mechanical shuttle | 12 forward and reverse gears, Four gears (1-4) in three ranges (I-III) with shuttle. |
| Partially synchronized | 12 forward and 4 reverse gears, Four gears (1-4) in three ranges (I-III). Shifts between gears are synchronized. |
Tractor hitch
| Control | position and lower-link draft control |
|---|---|
| Rear Type | I/II |
| Rear lift | 5194 lbs (2355 kg) |
Dimensions & Tires
| 2WD Length | 139 inches (353 cm) |
|---|---|
| 4WD Length | 143 inches (363 cm) |
| Rear tread | 55.1 to 78.75 inches (139 to 200 cm) |
| 2WD Wheelbase | 90.7 inches (230 cm) |
| 4WD Wheelbase | 88.5 inches (224 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) |
| 2WD Standard tires (ag) | Front: 7.50-16. Rear: 14.9-30 |
| 4WD Standard tires (ag) | Front: 9.5-24. Rear: 14.9-30 |
| 2WD Clearance (front axle) | 20.5 inches (52 cm) |
| 4WD Clearance (front axle) | 16.5 inches (41 cm) |
Power Take-off (PTO)
| Rear PTO | independent |
|---|---|
| Rear PTO Type | 540/ground |