| Manufacturer |
International Harvester |
| Price |
- |
| Model |
644 |
| Equipment Type |
Row-Crop Tractors |
| Factory |
Neuss, Germany |
ENGINE DETAIL
The International Harvester 644 features a robust D-206 diesel engine with a displacement of 3.4L, delivering 60hp at a rated RPM of 2150, making it suitable for moderate agricultural applications. Its bore and stroke dimensions (3.875x4.38 inches) indicate a design optimized for torque, which can be advantageous in plowing or hauling tasks. However, challenges may arise in fuel efficiency and emissions, particularly in compliance with modern standards, which could limit its viability for some operators in regulated areas.
| Description |
International Harvester D-206 diesel 4-cylinder liquid-cooled |
| Displacemen |
206.4ci / 3.4L |
| Bore/Strok |
3.875x4.38inches / 98x 111 mm |
| Powe |
60hp / 44.7kW |
| Rated RP |
2150 |
| Starter volt |
12 |
INTERNATIONAL HARVESTER 644 ENGINE
The International Harvester 644 tractor is powered by a robust 3.4L four-cylinder diesel engine, providing efficient fuel consumption ideal for agricultural applications. With a fuel tank capacity of 19.6 gallons (74.2 liters), it allows for extended operational periods between refueling, increasing productivity in the field. However, potential challenges may arise from the relatively small engine size when dealing with heavier implements or steep terrain, necessitating careful matching of equipment during operation.
| Description |
International Harvester 3.4L 4-cyl diesel |
| Fuel tan |
19.6gal / 74.2L |
TRANSMISSION
The International Harvester 644 features an 8-speed forward and 4-speed reverse transmission, providing versatile gear selections for varied field conditions. This range allows for efficient speed management during operations such as plowing or tilling, enhancing productivity. However, operators must be adept at shifting gears to maximize the benefits, which can present a learning curve for those unfamiliar with multi-speed tractors.
| Gear |
8 forward and 4 reverse |
INTERNATIONAL HARVESTER 644 TRANSMISSION
The International Harvester 644 features an 8-speed transmission, providing versatility for various field operations and optimizing power delivery for heavy tasks. Its efficient gear ratios enable precise control in both low and high-speed applications, which is advantageous for tasks like plowing or hauling. However, users should be aware of the potential learning curve associated with mastering the shifting process, particularly under load.
MECHANICAL
The International Harvester 644 tractor features manual steering, which can require more physical effort during operation, particularly in tight maneuvers. Its two- or four-wheel drive configurations provide flexibility for various terrains, improving traction in challenging conditions. However, the open operator station may expose the operator to the elements, which could be a consideration for extended outdoor use.
| Description |
Two- or four-wheel drive Manual steering Open operator station |
HYDRAULICS
| Pump flo |
7.9gpm / 29.9lpm |
TRACTOR HITCH
| Rear Typ |
II |
| Rear lif |
6394lbs / 2900kg |
POWER TAKE-OFF (PTO)
| Rear RP |
540/1000 |
| Engine RP |
540@1982 / 1000@2000 |
INTERNATIONAL HARVESTER 644 TIRES
The International Harvester 644 tractor features a mechanical front-wheel drive (MFWD) configuration, enhancing traction and stability in diverse agricultural conditions, especially in tillage and planting scenarios. The tire sizes (7.50-16/9.5-24 front and 16.9-30 rear) suggest good soil compaction management, but may present challenges in muddy or wet terrains where wider tires could be advantageous. Overall, this model is well-suited for small to mid-sized farms but may require careful tire selection for optimal performance in varying soil conditions.
| Ag fron |
7.50-16/9.5-24 (MFWD) |
| Ag rea |
16.9-30 |
DIMENSIONS & TIRES
The International Harvester 644 tractor features an 87.8-inch wheelbase, offering stable handling for various agricultural tasks, particularly in tight spaces. Weighing between 6,350 and 7,078 pounds, it strikes a balance between durability and maneuverability, although the weight may limit transport options without proper equipment. The tire specifications—front 7.50-16 and rear 16.9-30—suggest good traction for field work, yet may present challenges in terms of replacement costs and availability for those seeking specialized tire solutions.
| Wheelbas |
87.8inches / 223cm |
| Weigh |
6350 to 7078 pounds |
| Front tir |
7.50-16 |
| Rear tir |
16.9-30 |
ELECTRICAL
| Groun |
negative |
| Battery volt |
12 |
