1975 International Harvester Film Hydro 70 Tractor Troubleshooting
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Years in Production / 1973–1976
International Harvester
Hydro 70
Explore the specifications, hardware, and original references for the International Harvester Hydro 70.
No photo
90hp
Source index power
2WD Only
Drive
1973–1976
Production years
International Harvester
Manufacturer
Hydro 70 / 01
At a glance
Overview
1973 - 1976
66 Series
Row-Crop tractor
Production
Row-Crop tractor
Built in Rock Island, Illinois, USA
- Manufacturer
- International Harvester
- Original Price
- $14,200
Mechanical
Two-wheel drive
Power steering
Differential dry disc brakes
Open operator station.
Capacity
- Gas Fuel
- 33 gal124.9 L
- Diesel Fuel
- 31 gal117.3 L
- Hydraulic System
- 20 gal75.7 L
Hydraulics
- Type
- open center
- Capacity
- 20 gal75.7 L
- Rear Valves
- 2 OptOptional
- Pump Flow
- 6 gpm22.7 lpm
Hitch
- Rear Type
- II
Pto
- Rear Pto
- independent
- Rear Type
- 540 (1.375)
- Engine Rpm
- 540@1986
Serial Numbers
FAQ: How to read a serial number table.
- 1973
- 7501
- 1974
- 7570
- 1975
- 8681
- 1976
- 10094
Electrical
- Charging System
- alternator
- Charging Amps
- 37
Hydro 70 / 02
Under the hood
Engine Detail (Option 1)
International Harvester C-291
gasoline
6-cylinder
liquid-cooled inine
- Displacement
- 291 ci4.8 L
- Bore Stroke
- 3.75x4.39 inches95 x 112 mm
- Power Gross
- 90 hp67.1 kW
- Air Cleaner
- dual stage dry
- Compression Ratio
- 7.5:1
- Rated Rpm
- 2400
- Idle Rpm
- 900-2400
- Starter Volts
- 12
- Oil Capacity
- 9 qts8.5 L
- Coolant Capacity
- 21 qts19.9 L
- Fuel Type
- gasoline
- Cylinders
- 6
- Cooling
- liquid-cooled inine
Engine Detail (Option 2)
International Harvester D-312
diesel
6-cylinder
liquid-cooled inline
- Displacement
- 312 ci5.1 L
- Bore Stroke
- 3.875x4.410 inches98 x 112 mm
- Power Gross
- 90 hp67.1 kW
- Air Cleaner
- dual stage dry
- Compression Ratio
- 17:1
- Rated Rpm
- 2400
- Idle Rpm
- 900-2400
- Starter Volts
- 12
- Oil Capacity
- 12 qts11.4 L
- Coolant Capacity
- 21 qts19.9 L
- Fuel Type
- diesel
- Cylinders
- 6
- Cooling
- liquid-cooled inline
Engine Options
International Harvester 4.8L 6-cyl gasoline
International Harvester 5.1L 6-cyl diesel
Hydro 70 / 03
Gears & controls
Transmission
- Transmission Type
- hydrostatic
- Gears
- infinite forward and reverse2-range
- Oil Capacity
- 80 qts75.7 L
International Harvester Hydro70 Transmission
hydrostatic
Hydro 70 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 161 in408 cm
- Width
- 87 in220 cm
- Height
- 77 in195 cm
- Wheelbase
- 103 in261 cm
- Front tread
- 58 in147 cm
- Rear tread
- 60 in152 cm
Dimensions And Tires
- Wheelbase
- 103 inches261 cm
- Weight
- 7450 to 8200 pounds
- Front Tire
- 7.50-16
- Rear Tire
- 15.5-38
Serial Number Location
Tractor clutch housing on right side.
Tires And Tracks
- Front Ag
- 7.50-16
- Rear Ag
- 15.5-38
See it in action
Videos
Watch International Harvester Hydro 70 videos from their original YouTube creators.
Hydro 70 / 06
Tests (NTTL)
Tractor Tests
NTTL 1154: gasoline hydrostatic 2WD
NTTL 1155: diesel hydrostatic 2WD
Nebraska Tractor Test 1154
Gasoline hydrostatic 2WDNovember 14 - December 3, 1973
PTO performance
Drawbar performance
- Id
- 1154
- Power At Rated Engine Speed
- 69.61 hp51.9 kW
- Fuel Use
- 6.9 gal/hour26.1 l/hour
- Fuel Use
- 5.8 gal/hour22.0 l/hour
- Fuel Use
- 7.7 gal/hour29.1 l/hour
- Power At Rated Pto Speed
- 64.10 hp47.8 kW
- Max Power
- 53.86 hp40.2 kW
- Max Pull
- 8,427 lbs3822 kg
Nebraska Tractor Test 1155
Diesel hydrostatic 2WDNovember 14 - December 3, 1973
PTO performance
Drawbar performance
- Id
- 1155
- Power At Rated Engine Speed
- 69.51 hp51.8 kW
- Fuel Use
- 5.6 gal/hour21.2 l/hour
- Fuel Use
- 5.3 gal/hour20.1 l/hour
- Power At Rated Pto Speed
- 65.41 hp48.8 kW
- Max Power
- 53.10 hp39.6 kW
- Max Pull
- 8,310 lbs3769 kg