International Harvester Hydro 100 Tractor

Manufacturer International Harvester
Price 21,700(USD)
Model Hydro 100
Equipment Type Row-Crop Tractors
Factory

NEBRASKA TRACTOR TEST 1158 2

Description Diesel hydrostatic 2WD May 7 - 18, 1974 Link: Nebraska Tractor Test 1158 file PTO performance Drawbar performance Gear 5.5 MPH used for power test Gear 2.85 MPH used for pull test
Power at rated engine speed 104.17hp / 77.7kW
Fuel use 7.6gal/hour / 28.8l/hour
Power at rated PTO speed 101.30hp / 75.5kW
Max power 78.31hp / 58.4kW
Max pull 9,801lbs / 4445kg

INTERNATIONAL HARVESTER HYDRO 100 POWER

Drawbar (claimed) 80hp / 59.7kW
PTO (claimed) 104.17hp / 77.7kW
Drawbar (tested) 78.31hp / 58.4kW
PTO (tested) 104.17hp / 77.7kW

ENGINE DETAIL

The International Harvester Hydro 100 boasts a robust 6-cylinder diesel engine with a displacement of 7.1L, offering high torque for heavy-duty applications. The dual-stage dry air cleaner enhances engine performance by maintaining optimal air intake, while a compression ratio of 15.8:1 contributes to fuel efficiency and power output. However, its rated RPM of 2400 may limit applications needing higher speed operation, making it more suited for tasks requiring consistent power delivery, such as plowing or towing.

Description International Harvester diesel 6-cylinder liquid-cooled
Displacement 436ci / 7.1L
Bore/Stroke 4.30x5.00inches / 109x 127mm
Air cleaner dual stage dry
Compression 15.8:1
Rated RPM 2400
Starter volts 12

INTERNATIONAL HARVESTER HYDRO 100 ENGINE

The International Harvester Hydro 100 tractor features a robust 7.1L 6-cylinder diesel engine, offering high torque and reliable power delivery, ideal for heavy-duty agricultural tasks. Its hydrostatic transmission provides seamless speed control for precise maneuverability in varied field conditions, but may require more maintenance than conventional gear transmissions. Users should consider fuel efficiency and engine maintenance as critical factors for maximizing operational uptime and performance.

Description International Harvester 7.1L 6-cyl diesel

TRANSMISSION

The International Harvester Hydro 100 features a hydrostatic transmission providing seamless speed control with infinite gear selection, making it ideal for tasks requiring precision, such as mowing or tilling. The dual-range capability enhances versatility for various applications, although operators may need to adjust to the responsiveness of hydrostatic systems compared to traditional gear-driven tractors. A potential challenge is the increased maintenance and repair costs associated with hydrostatic drive systems over time.

Manufacturer International Harvester
Type hydrostatic
Gears infinite (2-range) forward and reverse

MECHANICAL

The International Harvester Hydro 100 features a 4x2 2WD chassis, suitable for flat terrains but may struggle in slippery or uneven conditions. Its hydrostatic power steering offers excellent maneuverability, while the differential hydraulic dry disc brakes provide reliable stopping power but require more maintenance compared to wet brake systems. The open operator station enhances visibility and comfort for the operator, though the optional two-post ROPS may limit protection in rollover scenarios.

Chassis 4x2 2WD
Steering hydrostatic power
Brakes differential hydraulic dry disc
Cab Open operator station. Two-post ROPS and cab available
Transmission hydrostatic

HYDRAULICS

Pump flow 12gpm / 45.4lpm

TRACTOR HITCH

Rear Type II

POWER TAKE-OFF (PTO)

Rear RPM 540/1000

INTERNATIONAL HARVESTER HYDRO 100 TIRES

The International Harvester Hydro 100 features an AG front tire size of 10.00-16 and a rear size of 18.4-34, providing a balance of traction and flotation for field operations. This configuration enhances soil preservation and stability during operation, especially in heavier soils or uneven terrain. However, be mindful of potential challenges in implementing tire pressure settings to optimize performance without compromising tire wear or fuel efficiency.

Ag front 10.00-16
Ag rear 18.4-34

DIMENSIONS

Wheelbase 104.8inches / 266cm
Operating weight 12,130lbs / 5502kg

DIMENSIONS & TIRES

The International Harvester Hydro 100 features a wheelbase of 104.8 inches, providing stability for various field operations, while its weight of 12,130 lbs ensures good traction. The front tire size of 10.00-16 improves maneuverability, while the rear tire size of 18.4-34 enhances flotation and traction in plowing and tilling conditions. This combination makes it well-suited for heavy-duty agricultural tasks but may pose challenges in compacted soil due to potential rutting.

Wheelbase 104.8inches / 266cm
Weight 12,130lbs / 5502kg
Front tire 10.00-16
Rear tire 18.4-34

HYDRO 100 SERIAL NUMBERS

Location Hydro drive housing, left side
1973 7501
1974 7727
1975 10915
1976 12434


Last Updated 2025-01-01
Stephen is a passionate tractor hobbyist with a deep-seated love for all things mechanized and agricultural. Growing up in a rural setting, he developed a fascination with these mighty machines that have played a crucial role in shaping the farming industry.

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