International Harvester 664 Tractor

Manufacturer International Harvester
Price 7,500(USD)
Model 664
Equipment Type Utility Tractors
Factory Rock Island, Illinois, USA

INTERNATIONAL HARVESTER 664 POWER

PTO (claimed) 61.5hp / 45.9kW

ENGINE DETAIL

The International Harvester 664 features a robust D239 natural diesel engine with a displacement of 3.9L (239 ci), offering a significant torque output ideal for heavy agricultural tasks. Its bore/stroke configuration of 3.875x5.06 inches ensures effective power delivery and fuel efficiency over extended usage. While the liquid-cooled system aids in maintaining optimal operating temperatures, potential challenges may arise regarding maintenance accessibility due to its compact design.

Description International Harvester D239 naltural diesel 4-cylinder liquid-cooled
Displacement 239ci / 3.9L
Bore/Stroke 3.875x5.06inches / 98x 129 mm

INTERNATIONAL HARVESTER 664 ENGINE

The International Harvester 664 tractor features a robust 3.9L 4-cylinder diesel engine, which delivers good torque and fuel efficiency, ideal for medium-duty agricultural tasks. Its design supports ease of maintenance with accessible components, though the relatively compact size may limit power for heavy-duty applications. In scenarios requiring versatile farming operations, the 664 is advantageous for small to mid-sized farms, balancing power with operational costs.

Description International Harvester 3.9L 4-cyl diesel

TRANSMISSIONS OVERVIEW

The International Harvester 664 tractor features a 10-speed transmission option, which allows for enhanced versatility in various field conditions, and a 5-speed option for straightforward operations. The 10-speed provides finer control over speed and torque, advantageous for tasks like tilling and hauling, while the 5-speed may be simpler for operators managing lighter workloads. However, the complexity of a 10-speed system may require more maintenance and operator training, presenting a challenge in less experienced hands.

Description 10-speed/5-speed

TRANSMISSION 1

The International Harvester 664 tractor features a 10-speed forward and 2-speed reverse transmission, providing versatility for various field operations and allowing for precise speed adjustments. This range of gears can enhance productivity in diverse tasks like tilling or hauling, but may require experienced operators to maximize efficient gear selection. Operators should also be aware of potential challenges managing gear shifts under load, which could affect performance and fuel efficiency in demanding conditions.

Gears 10 forward and 2 reverse

TRANSMISSION 2

The International Harvester 664 features a basic transmission setup with 5 forward gears and 1 reverse, allowing for versatile speed adjustments suited for various field tasks. While this simplicity enhances reliability and ease of use, it may limit operational efficiency in scenarios requiring rapid speed changes or specific gear ratios for optimized torque. Users should consider the trade-off between simplicity and the need for advanced gear configurations, particularly in demanding agricultural applications.

Gears 5 forward and 1 reverse

MECHANICAL

The International Harvester 664 features a 4x2 2WD chassis, which offers simplicity and reduced maintenance, making it suitable for light to moderate tasks on flat terrain. The open operator station enhances visibility and accessibility but may expose the operator to weather conditions, impacting comfort during extended use. Its 10-speed/5-speed transmission provides versatility in speed selection, facilitating efficient operation across various field conditions but may require a learning curve for optimal performance.

Chassis 4x2 2WD
Cab Open operator station.
Transmissions 10-speed/5-speed

HYDRAULICS

Pump flow 6 gpm /22.7 lpm

TRACTOR HITCH

Rear Type II

POWER TAKE-OFF (PTO)

Rear PTO independent
Rear RPM 540

INTERNATIONAL HARVESTER 664 TIRES

The International Harvester 664 tractor features an Ag front tire size of 6.50-16 and a rear tire size of 14.9-30, which provides good traction and stability in various agricultural applications. The combination supports effective load distribution, enhancing performance on both flat and uneven terrain. However, users should be mindful of the tractor's weight and power-to-weight ratio for optimal operational efficiency and to mitigate potential soil compaction in softer ground conditions.

Ag front 6.50-16
Ag rear 14.9-30

DIMENSIONS

Weight 6000lbs / 2721kg

DIMENSIONS & TIRES

The International Harvester 664 tractor, with a weight of 6000 lbs (2721 kg), offers a stable platform suitable for various agricultural tasks. Its front tires (6.50-16) provide good maneuverability, while the larger rear tires (14.9-30) enhance traction in heavier soil conditions. Advantages include its balance of weight and tire size for stability, but the tractor may face challenges in very wet conditions where excess weight could lead to sinking or reduced mobility.

Weight 6000lbs / 2721kg
Front tire 6.50-16
Rear tire 14.9-30

664 SERIAL NUMBERS

1972 2501
1973 3212


Last Updated 2025-01-01
Stephen is a passionate tractor hobbyist with a deep-seated love for all things mechanized and agricultural. Growing up in a rural setting, he developed a fascination with these mighty machines that have played a crucial role in shaping the farming industry.

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