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Years in Production / 1985–1991
Hesston
70-66
Explore the specifications, hardware, and original references for the Hesston 70-66.

70hp
Source index power
MFWD Optional
Drive
1985–1991
Production years
Hesston
Manufacturer
70-66 / 01
At a glance
Production
Utility tractor
Original price was $23,400 in 1990
- Distributor
- Hesston
- Manufacturer
- Fiat
Hydraulics
- Type
- open center
- Valves
- 1 to 3
- Total Flow
- 11 gpm41.6 lpm
Hitch
- Rear Type
- I/II
- Control
- position and lower-link draft control
- Rear Lift
- 5194 lbs2355 kg
Pto
- Rear Pto
- independent
- Rear Type
- 540/ground
Electrical
- Charging System
- alternator
- Charging Amps
- 33
- Battery Volts
- 12
Mechanical
Two- or four-wheel drive
Power steering
Mechanical wet disc brakes
Four-post ROPS. Canopy optional.
70-66 / 02
Under the hood
Engine Detail
Fiat 8045.06
diesel
4-cylinder
liquid-cooled
- Displacement
- 220.5 ci3.6 L
- Bore Stroke
- 3.937x4.527 inches100 x 115 mm
- Power
- 70 hp52.2 kW
- Compression Ratio
- 17:1
- Rated Rpm
- 2500
- Starter
- electric
- Starter Volts
- 12
- Fuel Type
- diesel
- Cylinders
- 4
- Cooling
- liquid-cooled
Engine Options
Fiat 3.6L 4-cyl diesel
- Fuel Tank
- 19.2 gal72.7 L
70-66 / 03
Gears & controls
Transmission (Option 1)
Four gears (1-4) in three ranges (I-III). Shifts between gears are synchronized.
- Transmission Type
- partially synchronized
- Gears
- 12 forward and 4 reverse
Transmission (Option 2)
Four gears (1-4) in three ranges (I-III) with shuttle.
- Transmission Type
- mechanical shuttle
- Gears
- 12 forward and reverse
Transmission (Option 3)
Four gears (1-4) in three ranges (I-III) with normal and creeper ranges.
- Transmission Type
- creeper
- Gears
- 20 forward and 8 reverse
70-66 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 143 in363 cm
- Height
- 65 in165 cm
- Height (ROPS)
- 97.5 in247 cm
- Wheelbase
- 88.5 in224 cm
- Front tread
- 60.25 in153 cm
- Rear tread
- 55.1 in139 cm
Dimensions And Tires
- 2wd Wheelbase
- 90.7 inches230 cm
- 4wd Wheelbase
- 88.5 inches224 cm
- Weight
- 5689 to 6510 pounds
- Front Tire
- 7.50-16
- 2wd Rear Tire
- 14.9-30
Tires And Tracks
- 2wd Standard Tires Ag
- Front: 7.50-16. Rear: 14.9-30
- 4wd Standard Tires Ag
- Front: 9.5-24. Rear: 14.9-30
70-66 / 05
Tests (NTTL)
Nebraska Tractor Test 1561
Diesel 12-speed 4WDApril 17 - May 1, 1985
PTO performance
Drawbar performance
- Id
- 1561
- Power At Rated Engine Speed
- 62.72 hp46.8 kW
- Fuel Use
- 3.7 gal/hour14.0 l/hour
- Fuel Use
- 3.6 gal/hour13.6 l/hour
- Power At Rated Pto Speed
- 62.71 hp46.8 kW
- Max Power
- 54.22 hp40.4 kW