Farmall Hydro 70

The Farmall Hydro 70 is a row-crop tractor built by Farmall, part of International Harvester, in Rock Island, Illinois, USA. It features a hydrostatic transmission with infinite forward and reverse speeds in two ranges. The tractor is powered by either a 4.8L 6-cylinder gasoline or a 5.1L 6-cylinder diesel International Harvester engine, both rated at 90 hp gross. It has a fuel tank capacity of 33 gallons for gasoline and 31 gallons for diesel. The Hydro 70 offers 54 hp drawbar power claimed and 69 hp PTO power claimed, with tested values close to these. It includes two-wheel drive, power steering, differential dry disc brakes, and an open operator station. The hydraulic system is open center with a 12 gpm pump flow. The tractor hitch is category II with an independent 540 rpm rear PTO. Dimensions include a 103-inch wheelbase, 161-inch length, 87-inch width, and 77-inch height at the steering wheel, with an operating weight of 8200 lbs. Tires are 7.50-16 front and 15.5-38 rear. The electrical system uses an alternator charging system. Serial numbers range from 1973 to 1976 with specific numbers listed, and the serial number location is on the tractor clutch housing on the right side.