International Harvester 664 overview
Built from 1972 to 1973, the International Harvester 664 is listed with a 239 ci 3.9 L engine rated at 2400 rpm. It has an independent 540 (1.375) rear PTO, with 540 rpm at 2000 engine rpm.
The tractor uses open-center hydraulics with 12 gpm 45.4 lpm pump flow and a Category II rear hitch with draft control. Listed capacities are 17.5 gal 66.2 L of fuel, 10 qts 9.5 L of engine oil, and 17 qts 16.1 L of coolant.
Quick answers
- EngineIt is listed with a 239 ci 3.9 L engine rated at 2400 rpm.
- Rear PTOThe independent rear PTO is 540 (1.375), with 540 rpm at 2000 engine rpm.
- Rear hitchThe Category II rear hitch uses draft control.
- HydraulicsIt uses open-center hydraulics with 12 gpm 45.4 lpm pump flow.
Engine and Power
The 239 ci 3.9 L engine is rated at 2400 rpm.
Diesel engine
| Displacement | 239 ci 3.9 L |
|---|---|
| Rated Rpm | 2400 |
| Engine Oil Capacity | 10 qts 9.5 L |
| Coolant Capacity | 17 qts 16.1 L |
Manufacture years
PTO and Hitch
The independent rear PTO is 540 (1.375), with 540 rpm at 2000 engine rpm.
Rear PTO
Rear PTO type
Engine RPM
Rear hitch
Hydraulics
Open-center hydraulics have 12 gpm 45.4 lpm pump flow.
Type
Pump flow
Fluids, Battery, and Service Facts
Listed capacities are 17.5 gal 66.2 L of fuel, 10 qts 9.5 L of engine oil, and 17 qts 16.1 L of coolant.
Fuel tank
Tires and Dimensions
The listed agricultural tire sizes are 6.50-16 front and 14.9-30 rear.
Front tire
Rear tire
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.