Farmall Hydro 100
Power
115 hp[P] hp
Production
1973-1976
Engine
Diesel, 6-cylinder
Transmission
Hydrostatic
Weight
12,130 lbs [5502 kg]
Drive
2WD
From the same series:
Introduction
International Harvester Hydro 100 Row-Crop Tractor
The International Harvester Hydro 100 is a row-crop tractor produced between 1973 and 1976 in Rock Island, Illinois. Part of the 966 and 1066 series, this model was designed to offer precise speed control for various agricultural operations through its hydrostatic transmission.
Engine and Performance
The tractor is powered by an International Harvester 6-cylinder diesel engine with a displacement of 436 cubic inches (7.1 liters). This liquid-cooled unit operates at a rated speed of 2400 RPM with a compression ratio of 15.8:1. It utilizes a dual-stage dry air cleaner to maintain intake quality during field work.
Transmission and Hydraulics
A defining feature of the Hydro 100 is its hydrostatic transmission, which provides infinite forward and reverse speeds across two ranges, allowing for seamless speed adjustment without gear shifting. The hydraulic system is of the open-center type, delivering a pump flow of 12 gpm (45.4 lpm).
PTO and Hitch
The machine is equipped with an independent rear power take-off (PTO) that supports both 540 and 1000 RPM speeds using a 1.375-inch shaft. For implement attachment, it features a Type II rear hitch with lower-link draft sensing, ensuring accurate depth control for mounted equipment.
Mechanical and Dimensions
Built on a 104.8-inch (266 cm) wheelbase, the tractor has an operating weight of 12,130 lbs (5,502 kg). It utilizes a two-wheel drive configuration, power steering, and differential hydraulic dry disc brakes. The operator station is an open design, with optional two-post ROPS or cab configurations available.
Conclusion
The International Harvester Hydro 100 serves as a specialized row-crop tractor. Its hydrostatic drive system makes it particularly well-suited for tasks requiring variable ground speeds while maintaining constant PTO output, providing a versatile solution for mid-1970s agricultural requirements.
Production Information of Farmall, Hydro 100
- Original price was $21,700 in 1976
- Row-Crop tractor
- Built in Rock Island, Illinois, USA
| Manufacturer | Farmall (a part of International Harvester) |
|---|
Dimension and Tires Information of Farmall, Hydro 100
| Wheelbase | 104.8 inches [266 cm] |
|---|---|
| Operating weight | 12,130 lbs [5502 kg] |
| Ag front | 10.00-16 |
|---|---|
| Ag rear | 18.4-34 |
Engine Specifications of Farmall, Hydro 100
- International Harvester
- Liquid-cooled
- Diesel
- 6-cylinder
| Air cleaner | Dual stage dry |
|---|---|
| Displacement | 436 ci [7.1 L] |
| Compression | 15.8:1 |
| Bore/Stroke | 4.30x5.00 inches [109 x 127 mm] |
| Starter volts | 12 |
| Rated RPM | 2400 |
Transmission Information of Farmall, Hydro 100
Transmission variants 1
| Manufacturer | International Harvester |
|---|---|
| Type | Hydrostatic |
| Gears | Infinite forward and reverse (2-range) |
Mechanical Specs of Farmall, Hydro 100
- Two-wheel drive
- Open operator station. Two-post ROPS and cab available.
- Power steering
- Differential hydraulic dry disc brakes
Power Information of Farmall, Hydro 100
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 540/1000 (1.375) |
Hydraulics Specifications of Farmall, Hydro 100
| Type | Open center |
|---|---|
| Pump flow | 12 gpm [45.4 lpm] |
Three-Point Hitch of Farmall, Hydro 100
| Rear Type | II |
|---|---|
| Control | Lower-link draft sensing |
Where it sits
With 115 hp[P] HP, the Farmall Hydro 100 sits between 966 (91 HP) and 1066 (140 HP) in Farmall's range. Its power puts it in the 74th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the Farmall Hydro 100 have?
The Farmall Hydro 100 delivers 115 hp[P] HP.
What years was the Farmall Hydro 100 produced?
The Farmall Hydro 100 was produced in 1973-1976.
What engine does the Farmall Hydro 100 have?
The Farmall Hydro 100 is powered by a Diesel, 6-cylinder engine.
What transmission does the Farmall Hydro 100 use?
The Farmall Hydro 100 uses a Hydrostatic transmission.
How much does the Farmall Hydro 100 weigh?
The Farmall Hydro 100 weighs 12,130 lbs [5502 kg].
Is the Farmall Hydro 100 4WD?
The Farmall Hydro 100 is available in 2WD.