Farmall
Farmall Hydro 100
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.
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 |