| Manufacturer | International Harvester |
| Price | - |
| Model | 744 |
| Equipment Type | Row-Crop Tractors |
| Factory | Neuss, Germany |
ENGINE DETAIL
The International Harvester 744 is powered by a D-239 diesel engine with a displacement of 3.9L, producing 72 hp at 2,300 RPM and delivering 169.3 lb-ft of torque at a low 1,200 RPM, making it suitable for tasks requiring high torque at low speeds. Its direct injection fuel system and 16:1 compression ratio enhance fuel efficiency and optimize performance, but potential challenges include maintenance of the liquid cooling system and ensuring fuel quality to prevent injector issues. Overall, it's ideal for agricultural applications where reliable low-end torque is beneficial for heavy-duty tasks such as plowing or tilling.
| Description | International Harvester D-239 diesel 4-cylinder liquid-cooled |
| Displacemen | 238.65ci / 3.9L |
| Bore/Strok | 3.875x5.06inches / 98x 129 mm |
| Powe | 72hp / 53.7kW |
| Fuel syste | direct injection |
| Compressio | 16:1 |
| Rated RP | 2300 |
| Torqu | 169.3 lb-ft/229.6 Nm |
| Torque RP | 1200 |
| Starter volt | 12 |
INTERNATIONAL HARVESTER 744 ENGINE
The International Harvester 744 is equipped with a robust 3.9L 4-cylinder diesel engine, offering reliable power and efficiency for agricultural tasks. With a fuel tank capacity of 19.6 gallons (74.2 liters), this tractor can operate for extended periods between refuels, which is advantageous for large-acreage farming. However, users should consider the engine's maintenance requirements and potential emissions compliance challenges, depending on the location.
| Description | International Harvester 3.9L 4-cyl diesel |
| Fuel tan | 19.6gal / 74.2L |
TRANSMISSIONS OVERVIEW
The International Harvester 744 features an 8-speed/12-speed partial power shift transmission, providing versatile speed management for different agricultural tasks. This drivetrain allows for quick adjustments in speed and power, optimizing fuel efficiency and reducing strain on the engine during various cultivations. However, operators should be aware of potential complexity in mastering gear selection for optimal performance, particularly in varied terrain scenarios.
| Description | 8-speed/12-speed partial power shift |
TRANSMISSION 1
The International Harvester 744 tractor, featuring 8 forward and 4 reverse gears, provides enhanced versatility for various agricultural tasks, allowing operators to efficiently manage speed and torque for both fieldwork and transportation. The 8 forward gears facilitate smooth transitions and adaptability to changing conditions, while 4 reverse gears offer improved maneuverability in tight spaces. However, operators may need to consider the potential learning curve associated with multi-speed operation, especially in complex terrain or during intensive tasks.
| Gear | 8 forward and 4 reverse |
SPEEDS 1
| Description | With 16.9/14-30 rear tires |
TRANSMISSION 2
The International Harvester 744 tractor features an Agriomatic S partial power shift transmission, providing 12 forward and 4 reverse gears. This transmission offers smooth shifting between gears, enhancing operational efficiency and ease of handling in varied field conditions. A potential challenge may arise in maintenance complexity due to the sophistication of the power shift mechanism, which could necessitate specialized service for optimal performance.
| Transmissio | Agriomatic S |
| Typ | partial power shift |
| Gear | 12 forward and 4 reverse |
SPEEDS 2
| Description | With 16.9/14-30 rear tires |
INTERNATIONAL HARVESTER 744 TRANSMISSIONS
The International Harvester 744 tractor features an 8-speed/12-speed partial power shift transmission, allowing for smooth gear changes under load, enhancing operator efficiency in diverse field conditions. This transmission type provides a balance of speed and torque, making it suitable for both heavy tillage and transport tasks. However, the complexity of the power shift system may require more maintenance and operator training compared to traditional manual transmissions.
| Description | 8-speed/12-speed partial power shift |
MECHANICAL
The International Harvester 744 tractor, featuring either two- or four-wheel drive and manual steering, offers versatility in diverse agricultural applications. Its planetary final drive enhances torque distribution and improves traction, particularly useful for tasks in challenging terrains. However, the manual steering may pose a challenge in precision handling during intensive operations, potentially leading to operator fatigue over prolonged use.
| Description | Two- or four-wheel drive/Manual steering/Open operator station. |
| Final drive | planetary |
HYDRAULICS
| Pump flo | 7.9gpm / 29.9lpm |
TRACTOR HITCH
| Rear Typ | II |
| Contro | position and draft control |
| Rear lif | 6394lbs / 2900kg |
POWER TAKE-OFF (PTO)
| Rear PT | independent |
| Rear RP | 540/540/1000 OptOptional |
| Engine RP | 540@1920 / 1000@2000 |
INTERNATIONAL HARVESTER 744 TIRES
The International Harvester 744, equipped with a MFWD (Mechanical Front-Wheel Drive) system, offers enhanced traction and stability, especially in wet or uneven agricultural terrains. The front tire configuration (7.50-18/11.2-24) enables nimble handling, while the rear tires (16.9-34) provide substantial load-bearing capacity, making it suitable for heavy tillage operations. However, the MFWD system may introduce additional maintenance requirements, which can be a consideration for cost-sensitive users.
| Ag fron | 7.50-18/11.2-24 (MFWD) |
| Ag rea | 16.9-34/16.9-34 (MFWD) |
DIMENSIONS & TIRES
The International Harvester 744 features an 86-inch wheelbase, providing stability for various field operations and a weight range of 6,590 to 7,497 pounds, allowing for effective traction on diverse terrains. Its front tires (7.50-18) and larger rear tires (16.9-34) improve weight distribution and enhance grip in soil cultivation and heavy-duty tasks. However, the tractor may face maneuverability challenges in tight spaces due to its size, making it less ideal for confined agricultural settings.
| Wheelbas | 86inches / 218cm |
| Weigh | 6590 to 7497 pounds |
| Front tir | 7.50-18 |
| Rear tir | 16.9-34 |
ELECTRICAL
| Groun | negative |
| Charging syste | alternator |
| Charging amp | 28 |
| Battery volt | 12 |
| Battery A | 88 |