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Years in Production / 1985–1991

Hesston

70-66

Explore the specifications, hardware, and original references for the Hesston 70-66.

Generic tractor; no model photo available
No photo

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