Hesston 80-90

The Hesston 80-90 is a tractor produced by Hesston. It is equipped with a 238.5 ci 3.9 L engine. The rated power output is 80 hp 59.7 kW. Transmission: 20 forward and 8 reverse. Operating weight: 6930 to 7634 pounds.

Overview

	1990 90 SeriesUtility tractorFiat built
1990
90 Series
Utility tractor
Fiat built

1990
90 Series
Utility tractor
Fiat built

Production
Distributor	Hesston
Manufacturer	Fiat
Utility tractor
Original price was $35,000 in 1990

Variants
80-90DT	4WD

Hesston 80-90 Engine
Fiat 3.9L 4-cyl diesel
Fuel tank	21.1 gal 79.9 L
Engine details ...

Hesston 80-90 Power
Engine	80 hp 59.7 kW
PTO (claimed)	71 hp 52.9 kW
Drawbar (tested)	60.77 hp 45.3 kW
PTO (tested)	70.86 hp 52.8 kW
Performance test details ...

Mechanical
Two- or four-wheel drive
Final drives	planetary
Differential lock	mechanical rear
Power steering
Differential hydraulic wet disc brakes
Four-post ROPS. Cab optional.

Hydraulics
Type	open center
Pressure	2702 psi 186.3 bar
Rear valves	2 or 3
Pump flow	11 gpm 41.6 lpm

Tractor hitch
Rear Type	I/II
Rear lift	4898 lbs 2221 kg

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	540 (1.375)
Engine RPM	540@2198

Dimensions & Tires
2WD Wheelbase	89.1 inches 226 cm
4WD Wheelbase	89.5 inches 227 cm
Weight	6930 to 7634 pounds
Front tire	7.50-16
Rear tire	16.9-30
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	65
Battery volts	12

References
90 Series Tractors published in 1984, by Hesston

Engine

	1990 90 SeriesUtility tractorFiat built
1990
90 Series
Utility tractor
Fiat built

1990
90 Series
Utility tractor
Fiat built

Engine Detail — 238.5 ci / 3.9 L Diesel

Manufacturer	Fiat 8045.05
Fuel Type	Diesel
Configuration	4-cylinder, liquid-cooled
Displacement	238.5 ci 3.9 L
Bore/Stroke	4.094x4.527 inches 104 x 115 mm
Power	80 hp 59.7 kW
Fuel system	direct injection
Pre-heating	ether injection
Compression	17:1
Rated RPM	2500
Starter	electric
Starter volts	12

Transmission

	1990 90 SeriesUtility tractorFiat built
1990
90 Series
Utility tractor
Fiat built

1990
90 Series
Utility tractor
Fiat built

Transmission options
12-speed synchromesh
12-speed mechanical shuttle
20-speed creeper

Transmission — 12 forward and 4 reverse synchromesh

Type	synchromesh
Gears	12 forward and 4 reverse
Clutch	279.4mm dry disc
Four gears (1-4) in three ranges (I-III) plus reverse range.

Transmission — 12 forward and reverse mechanical shuttle

Type	mechanical shuttle
Gears	12 forward and reverse
With 18.4-30 rear tires.
Transmission
Type	creeper
Gears	20 forward and 8 reverse

Dimensions

	1990 90 SeriesUtility tractorFiat built
1990
90 Series
Utility tractor
Fiat built

1990
90 Series
Utility tractor
Fiat built

Hesston 80-90 Tires
2WD Ag front	7.50-16
4WD Ag front	11.2-24
Ag rear	16.9-30
2WD Ag front	7.50-18
2WD Ag front	9.5L-15
4WD Ag front	13.6-24
Ag rear	13.6-38
	16.9-34

Dimensions
2WD Wheelbase	89.1 inches 226 cm
4WD Wheelbase	89.5 inches 227 cm
2WD Length	134.75 inches 342 cm
4WD Length	144 inches 365 cm
2WD Front tread	55.1 to 74.75 inches 139 to 189 cm
4WD Front tread	64.25 to 77 inches 163 to 195 cm
Rear tread	55.1 to 82.75 inches 139 to 210 cm

Hesston 80-90 Weight
2WD	6930 lbs 3143 kg
4WD	7634 lbs 3462 kg
Operating	7,130 lbs (2WD) 3234 kg
Ballasted	9,465 lbs 4293 kg

Hesston 80-90 Height
2WD Hood	59.5 inches 151 cm
4WD Hood	60 inches 152 cm
ROPS	102.5 inches 260 cm
2WD Cab	103.75 inches 263 cm
4WD Cab	100.5 inches 255 cm

Tests

	1990 90 SeriesUtility tractorFiat built
1990
90 Series
Utility tractor
Fiat built

1990
90 Series
Utility tractor
Fiat built

Nebraska Tractor Test 1563
Diesel 12-speed 2WD 4, 22/1985 - May 7, 1985 Link: Nebraska Tractor Test 1563 file
PTO performance
Power at rated engine speed	70.86 hp 52.8 kW
Fuel use	4.1 gal/hour 15.5 l/hour
Power at rated PTO speed	69.25 hp 51.6 kW
Fuel use	4.0 gal/hour 15.1 l/hour
Drawbar performance
Max power	60.77 hp 45.3 kW
Fuel use	4.1 gal/hour 15.5 l/hour
Max pull	7323 lbs 3321 kg