International Harvester Hydro 100 tractor

International Harvester 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:

966
1066

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, USA. Designed for agricultural operations, this machine is part of a series that includes the 966 and 1066 models, characterized by its integration of hydrostatic transmission technology.

Engine and Performance

The tractor is powered by an International Harvester 6-cylinder, liquid-cooled diesel engine with a displacement of 436 cubic inches (7.1 L). It operates at a rated speed of 2400 RPM and features a compression ratio of 15.8:1. The engine induction system utilizes a dual-stage dry air cleaner to maintain performance in dusty field conditions.

Transmission and Drivetrain

A defining feature of the Hydro 100 is its hydrostatic transmission, which provides infinite forward and reverse speeds across two ranges. This configuration allows for precise ground speed control without the need for traditional gear shifting. The tractor utilizes a two-wheel-drive system assisted by power steering and differential hydraulic dry disc brakes for operational control.

Hydraulics and PTO

The hydraulic system is an open-center type delivering a pump flow of 12 gpm (45.4 lpm). The independent rear PTO supports both 540 and 1000 RPM speeds, utilizing a 1.375-inch shaft. Implement attachment is managed through a Category II rear hitch equipped with lower-link draft sensing to ensure consistent depth and load management during field work.

Dimensions and Operator Environment

The tractor has a wheelbase of 104.8 inches (266 cm) and an operating weight of 12,130 lbs (5502 kg). It is fitted with 10.00-16 front and 18.4-34 rear agricultural tires. The operator station is an open-platform design, which could be configured with a two-post Roll-Over Protective Structure (ROPS) or an optional cab.

Conclusion

The International Harvester Hydro 100 is a specialized row-crop tractor that offers significant flexibility through its hydrostatic drive system. It is well-suited for agricultural tasks requiring constant speed adjustments and precise implement control, serving as a robust solution for medium-to-heavy duty field applications of its era.

Production Information of International Harvester, Hydro 100

  • Original price was $21,700 in 1976
  • Row-Crop tractor
  • Built in Rock Island, Illinois, USA
ManufacturerInternational Harvester

Dimension and Tires Information of International Harvester, Hydro 100

Wheelbase104.8 inches [266 cm]
Operating weight12,130 lbs [5502 kg]
Ag front10.00-16
Ag rear18.4-34

Engine Specifications of International Harvester, Hydro 100

  • International Harvester
  • Liquid-cooled
  • Diesel
  • 6-cylinder
Air cleanerDual stage dry
Displacement436 ci [7.1 L]
Compression15.8:1
Bore/Stroke4.30x5.00 inches [109 x 127 mm]
Starter volts12
Rated RPM2400

Transmission Information of International Harvester, Hydro 100

Transmission variants 1

ManufacturerInternational Harvester
TypeHydrostatic
GearsInfinite forward and reverse (2-range)

Mechanical Specs of International Harvester, Hydro 100

  • Two-wheel drive
  • Open operator station. Two-post ROPS and cab available.
  • Power steering
  • Differential hydraulic dry disc brakes

Power Information of International Harvester, Hydro 100

Rear PTOIndependent
Rear PTO Type540/1000 (1.375)

Hydraulics Specifications of International Harvester, Hydro 100

TypeOpen center
Pump flow12 gpm [45.4 lpm]

Three-Point Hitch of International Harvester, Hydro 100

Rear TypeII
ControlLower-link draft sensing

Where it sits

With 115 hp[P] HP, the International Harvester Hydro 100 sits between 966 (91 HP) and 1066 (140 HP) in International Harvester'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 International Harvester Hydro 100 have?

The International Harvester Hydro 100 delivers 115 hp[P] HP.

What years was the International Harvester Hydro 100 produced?

The International Harvester Hydro 100 was produced in 1973-1976.

What engine does the International Harvester Hydro 100 have?

The International Harvester Hydro 100 is powered by a Diesel, 6-cylinder engine.

What transmission does the International Harvester Hydro 100 use?

The International Harvester Hydro 100 uses a Hydrostatic transmission.

How much does the International Harvester Hydro 100 weigh?

The International Harvester Hydro 100 weighs 12,130 lbs [5502 kg].

Is the International Harvester Hydro 100 4WD?

The International Harvester Hydro 100 is available in 2WD.

Compare the International Harvester Hydro 100 with another model