International Harvester Hydro 70 Overview

The International Harvester Hydro 70 was built from 1973-1976. Recorded details include rated engine speed of 2400, gear count of infinite forward and reverse (2-range), rear PTO speed of 540 (1.375), hydraulic system of open center, hydraulic capacity of 20 gal 75.7 L. Together, those figures give owners a practical starting point when comparing engine, driveline, PTO, hydraulic, capacity, and chassis details for this particular tractor. They also provide a useful reference for routine checks, repairs, service planning, and equipment matching.
International Harvester Hydro 70 Quick Answers
- Production years1973-1976
- Transmissioninfinite forward and reverse (2-range)
- Rear PTO540 (1.375)
- Hydraulicsopen center
Engine and Power
The listed engine details include rated engine speed of 2400.
Gasoline engine
| Rated Rpm | 2400 |
|---|---|
| Coolant Capacity | 21 qts 19.9 L |
Diesel engine
| Rated Rpm | 2400 |
|---|---|
| Coolant Capacity | 21 qts 19.9 L |
Manufacture years
Transmission
The transmission record notes gear count of infinite forward and reverse (2-range).
Transmission
| Type | hydrostatic |
|---|---|
| Gears | infinite forward and reverse (2-range) |
PTO and Hitch
PTO and hitch details include rear PTO speed of 540 (1.375).
Rear PTO
Rear PTO type
Engine RPM
Rear hitch
Hydraulics
The hydraulic record lists hydraulic system of open center.
Type
Capacity
Pump flow
Accuracy Note
Tractor specifications can vary by year, region, factory configuration, installed equipment, and later repairs. Match serial range, engine, transmission, PTO setup, and model code before ordering parts or doing service work.