Introduction
International Harvester Hydro 85 Utility Tractor
The International Harvester Hydro 85 is a utility tractor manufactured in Doncaster, England, between 1981 and 1985. Part of the 785/885 series, this model is recognized for its hydrostatic transmission system designed for applications requiring precise speed control.
Engine and Performance
The tractor is powered by the International Harvester D-246, a 4.0-liter, 4-cylinder liquid-cooled diesel engine. It produces a gross power output of 80 hp (59.7 kW) and a net power of 77.4 hp (57.7 kW). The engine delivers 194 lb-ft (263.1 Nm) of torque at a rated speed of 1600 RPM, providing consistent lugging ability for various field tasks.
Transmission and Drivetrain
A defining feature of the Hydro 85 is its hydrostatic transmission, which provides infinite forward and reverse gears, allowing for seamless speed adjustments without traditional clutching. The tractor is available in both two-wheel drive and mechanical front-wheel drive (MFWD) configurations, supported by power steering and a mechanical rear differential lock to enhance traction in varying soil conditions.
Hydraulics and Hitch
The hydraulic system features a pump flow of 12.4 gpm (46.9 lpm). The rear hitch is a Category II system equipped with both position and draft control. It offers a standard lift capacity of 4400 lbs (1995 kg), which can be increased to 5250 lbs (2381 kg) when equipped with an optional assistor ram.
Operator Environment
The tractor comes standard with a cab, with economy and deluxe options available to suit specific operator requirements. Safety and control are maintained through hydraulic wet disc brakes and an independent rear PTO offering 540/1000 RPM settings, engaged via a hydraulic wet disc clutch.
Conclusion
The International Harvester Hydro 85 is a capable utility tractor suitable for operations where hydrostatic speed modulation is prioritized. Its combination of a 4-cylinder diesel engine, Category II hitch capacity, and versatile cab options makes it a durable machine for mid-range agricultural and utility work.
Production Information of International Harvester, Hydro 85
- Utility tractor
- Built in Doncaster, England
| Manufacturer | International Harvester |
|---|
Dimension and Tires Information of International Harvester, Hydro 85
| Wheelbase | 88.2 inches [224 cm] |
|---|---|
| Length | 147.6 inches [374 cm] |
| Ag front | 10.00-16 (2WD) |
|---|---|
| Ag front(optional) | 12.4-24 (MFWD) |
| Ag rear | 16.9-34 |
Engine Specifications of International Harvester, Hydro 85
- International Harvester D-246
- Liquid-cooled
- 4-cylinder
- Diesel
| Power (gross) | 80 hp [59.7 kW] |
|---|---|
| Torque | 194 lb-ft [263.1 Nm] |
| Displacement | 246 ci [4.0 L] |
| Bore/Stroke | 3.94x5.06 inches [100 x 129 mm] |
| Power (net) | 77.4 hp [57.7 kW] |
| Rated RPM | 2300 |
| Fuel system | Indirect injection |
| Starter volts | 12 |
| Starter | Electric |
| Torque RPM | 1600 |
Transmission Information of International Harvester, Hydro 85
Transmission variants 1
| Type | Hydrostatic |
|---|---|
| Gears | Infinite forward and reverse |
Mechanical Specs of International Harvester, Hydro 85
- Two- or four-wheel drive
- Cab standard. Economy and Deluxe cabs available.
- Hydraulic wet disc brakes
- Power steering
| Differential lock | Mechanical rear |
|---|
Power Information of International Harvester, Hydro 85
| Rear PTO | Independent |
|---|---|
| Clutch | Hydraulic wet disc |
| Rear PTO Type | 540/1000 |
Hydraulics Specifications of International Harvester, Hydro 85
| Pump flow | 12.4 gpm [46.9 lpm] |
|---|
Three-Point Hitch of International Harvester, Hydro 85
| Rear Type | II |
|---|---|
| Rear Type(optional) | 5250 lbs [2381 kg] |
| Control | Position and draft control |
| Rear lift | 4400 lbs [1995 kg] |
With optional assistor ram
Where it sits
With 80 HP, the International Harvester Hydro 85 sits just below 885 (85 HP) in International Harvester's range. Its power puts it in the 61th percentile of 1980s models in our database (2052 machines).
Frequently asked questions
How much horsepower does the International Harvester Hydro 85 have?
The International Harvester Hydro 85 delivers 80 HP.
What years was the International Harvester Hydro 85 produced?
The International Harvester Hydro 85 was produced in 1981-1985.
What engine does the International Harvester Hydro 85 have?
The International Harvester Hydro 85 is powered by a Diesel, 4-cylinder engine.
What transmission does the International Harvester Hydro 85 use?
The International Harvester Hydro 85 uses a Hydrostatic transmission.
Is the International Harvester Hydro 85 4WD?
The International Harvester Hydro 85 is available in 2WD/4WD.