International Harvester 644 Specs ( 1974-1980 )
Overview
The International Harvester 644 is a versatile row-crop tractor built in Neuss, Germany, offering 60 horsepower from its 3.4L 4-cylinder diesel engine. Available in both two-wheel and four-wheel drive configurations, this machine features a robust rear lift capacity of 6,394 pounds and a versatile 540/1000 RPM rear PTO.
Ideal Applications
Heavy Lifting:
With a rear lift capacity of 6,394 lbs and a Type II hitch, this tractor is well-suited for handling substantial rear-mounted implements and heavy loads.
Row-Crop Operations:
Designed specifically as a row-crop tractor, its 87.8-inch wheelbase and 8-speed transmission provide the stability and gearing necessary for precise field work.
Versatile PTO Work:
The dual 540/1000 RPM rear PTO allows the 60 hp engine to power a wide range of machinery, reaching 540 RPM at 1982 engine RPM for efficient operation.
Production
| Description | Row-Crop tractor / Built in Neuss, Germany |
|---|---|
| Manufacturer | International Harvester |
Engine
| Engine type | International Harvester 3.4L 4-cyl diesel |
|---|---|
| Fuel tank | 19.6 gal (74.2 L) |
| Bore/Stroke | 3.875x4.38 inches (98 x 111 mm) |
| Description | International Harvester D-206 / diesel / 4-cylinder / liquid-cooled |
| Displacement | 206.4 ci (3.4 L) |
| Power | 60 hp (44.7 kW) |
| Rated RPM | 2150 |
| Starter volts | 12 |
Transmission
| Gears | 8 forward and 4 reverse |
|---|---|
| Transmission type | 8-speed |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Manual steering |
| Drive type | Two- or four-wheel drive |
Hydraulics
| Pump flow | 7.9 gpm (29.9 lpm) |
|---|
Hitch
| Rear lift | 6394 lbs (2900 kg) |
|---|---|
| Rear Type | II |
PTO
| Engine RPM | 540@1982 |
|---|---|
| Rear PTO Type | 540/1000 |
Electrical
| Battery volts | 12 |
|---|---|
| Ground | negative |
Dimensions & Tires
| 2WD Weight | 6350 lbs (2880 kg) |
|---|---|
| 4WD Weight | 7078 lbs (3210 kg) |
| Height | 98 inches (248 cm) |
| Length | 148.8 inches (377 cm) |
| Wheelbase | 87.8 inches (223 cm) |
| Front tire | 7.50-16 |
| Rear tire | 16.9-30 |
| Weight | 6350 to 7078 pounds |
| Wheelbase | 87.8 inches (223 cm) |
| Ag front | 7.50-16 |
| Ag rear | 16.9-30 |