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Farmall Hydro 100

Farmall Hydro 100 tractor
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The Farmall Hydro 100 is a row-crop tractor built by Farmall, a part of International Harvester, in Rock Island, Illinois, USA. It features a 7.1L 6-cylinder diesel engine, hydrostatic transmission with infinite forward and reverse speeds in 2 ranges, and power outputs of up to 104.17 hp at the PTO. The tractor has two-wheel drive, power steering, and differential hydraulic dry disc brakes. It has an open operator station with optional two-post ROPS and cab. The hydraulic system is open center with a 12 gpm pump flow. The rear hitch is category II with lower-link draft sensing control, and the PTO is independent with 540/1000 rpm options. The Hydro 100 was originally priced at $21,700 in 1976 and has a wheelbase of 104.8 inches and operating weight of 12,130 lbs. It uses 10.00-16 front tires and 18.4-34 rear tires. Serial numbers are located on the hydro drive housing on the left side.
Farmall Hydro 100Farmall tractorsInternational Harvesterrow-crop tractor7.1L diesel enginehydrostatic transmissiontractor specifications
Power115 hp[P]
Founded1973 - 1976
ModelHydro 100

Technical Specifications

Detailed specifications and technical data for Farmall Hydro 100

Power

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

Engine

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

Hydraulics

Type:open center
Pump flow:12 gpm (45.4 lpm)

Mechanical

Drive:Two-wheel drive
Brakes:Differential hydraulic dry disc brakes
Steering:Power steering
Operator station:Open operator station. Two-post ROPS and cab available.

Production

Type:Row-Crop tractor
Built in:Rock Island, Illinois, USA
Manufacturer:Farmall (a part of International Harvester)
Original price:$21,700 in 1976

Transmission

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

Tractor hitch

Control:lower-link draft sensing
Rear Type:II

Dimensions & Tires

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

Power Take-off (PTO)

Rear PTO:independent
Rear PTO Type:540/1000 (1.375)

Hydro 100 Serial Numbers

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

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