Overview
The Hesston 100-90 is a row-crop farm tractor manufactured by Fiat, listed with a 5.4L 6-cylinder diesel engine and available in two- or four-wheel drive configurations. It features a Rear Type II hitch with a 5,852 lb lift capacity and was originally priced at $39,500 in 1990.
Ideal Applications
Tested Power Output:
According to Nebraska Tractor Test 1580, the 100-90 achieved a maximum drawbar power of 77.98 hp and a PTO power of 91.52 hp at rated engine speed.
Transmission and Drive Configuration:
The mechanical system is equipped with either a 15-speed or 20-speed transmission and is built on a 101.3-inch wheelbase with an operating weight of 9,540 lbs for the 4WD version.
Hydraulic and PTO Specifications:
The tractor features an open center hydraulic system providing an 11.6 gpm pump flow through two valves, alongside an independent rear PTO supporting 540 and 1000 RPM speeds.
Production
| Description | Row-Crop tractor / Original price was $39,500 in 1990 |
|---|---|
| Distributor | Hesston |
| Manufacturer | Fiat |
Engine
| Engine type | Fiat 5.4L 6-cyl diesel |
|---|---|
| Bore/Stroke | 3.937x4.527 inches (100 x 115 mm) |
| Compression | 17:1 |
| Description | Fiat / diesel / 6-cylinder / liquid-cooled |
| Displacement | 331 ci (5.4 L) |
| Power | 100 hp (74.6 kW) |
| Rated RPM | 2500 |
| Starter volts | 12 |
| Drawbar (claimed) | 78 hp (58.2 kW) |
| Drawbar (tested) | 77.98 hp (58.1 kW) |
| PTO (claimed) | 91.5 hp (68.2 kW) |
| PTO (tested) | 91.52 hp (68.2 kW) |
Transmission
| Gears | 15 forward and 3 reverse / 20 forward and 4 reverse |
|---|---|
| Transmission type | 15-speed / 20-speed |
| Transmission type | 15-speed / 20-speed |
Mechanical
| Drive type | Two- or four-wheel drive |
|---|
Hydraulics
| Pump flow | 11.6 gpm (43.9 lpm) |
|---|---|
| Type | open center |
| Valves | 2 |
Hitch
| Rear lift | 5,852 lbs (2654 kg) |
|---|---|
| Rear Type | II |
PTO
| Rear PTO | independent |
|---|---|
| Rear PTO Type | 540/1000 |
Dimensions & Tires
| Ballasted weight | 11,580 lbs (5252 kg) |
|---|---|
| Operating weight | 9,540 lbs (4WD) (4327 kg) |
| Wheelbase | 101.3 inches (257 cm) |
| Front tire | 10.00-16 |
| Rear tire | 18.4-34 |
| Weight | 9,540 lbs (4327 kg) |
| Wheelbase | 101.3 inches (257 cm) |
| Ag front | 10.00-16 |
| Ag rear | 18.4-34 |
Nebraska Tractor Test 1580
| Description | Diesel 15-speed 4WDOctober 3 - 10, 1985Link: Nebraska Tractor Test 1580 file / PTO performance / Drawbar performance |
|---|---|
| Fuel use | 5.7 gal/hour (21.6 l/hour) / 5.6 gal/hour (21.2 l/hour) / 5.7 gal/hour (21.6 l/hour) |
| Max power | 77.98 hp (58.1 kW) |
| Power at rated engine speed | 91.52 hp (68.2 kW) |
| Power at rated PTO speed | 90.57 hp (67.5 kW) |