International Harvester 734 Tractor

Manufacturer	International Harvester
Price	-
Model	734
Equipment Type	Row-Crop Tractors
Factory

INTERNATIONAL HARVESTER 734 POWER

Engine (gross)	73hp / 54.4kW
Engine (net)	66.1hp / 49.3kW
PTO (claimed)	61.7hp / 46.0kW

ENGINE DETAIL

The International Harvester 734 tractor is powered by a robust D-239 diesel engine, offering 73 hp at 2200 RPM and a peak torque of 185.2 lb-ft at 1200 RPM, which provides substantial low-end power suitable for heavy-duty applications such as plowing and hauling. Its 16:1 compression ratio ensures efficient fuel combustion, while the direct injection system enhances engine response and performance. However, potential challenges include maintaining optimal operating temperatures due to its liquid-cooling system, and ensuring regular oil and coolant level checks to sustain peak operational efficiency.

Description	International Harvester D-239 diesel 4-cylinder liquid-cooled
Displacement	238.7ci / 3.9L
Bore/Stroke	3.87x5.06inches / 98x 129mm
Power (gross)	73hp / 54.4kW
Fuel system	direct injection
Compression	16:1
Rated RPM	2200
Torque	185.2lb-ft / 251.1Nm
Torque RPM	1200
Starter	electric
Starter volts	12
Oil capacity	9.5qts / 9.0L
Coolant capacity	20.6qts / 19.5L

INTERNATIONAL HARVESTER 734 ENGINE

The International Harvester 734 tractor is powered by a robust 3.9L 4-cylinder diesel engine, providing efficient fuel consumption and reliable torque for various agricultural tasks. With an 18.5-gallon (70.0L) fuel tank, it offers extended operational runtime, beneficial for long work hours in the field. However, the 4-cylinder engine may present challenges in high-demand scenarios, such as heavy tillage or large implement usage, where power output may be limited compared to larger engines.

Description	International Harvester 3.9L 4-cyl diesel
Fuel tank	18.5gal / 70.0L

TRANSMISSIONS OVERVIEW

The International Harvester 734 tractor features an optional 8-speed or 12-speed transmission system, providing flexibility in speed selection for varied field conditions. The 12-speed option offers finer control for tasks requiring precision, such as plowing or tilling, while the 8-speed offers simplicity and reliability for general use. It's essential to consider the trade-offs between complexity and ease of maintenance when selecting your transmission type, particularly in rugged agricultural environments.

Description

8-speed 12-speed

TRANSMISSION 1

The International Harvester 734 tractor features an 8 forward and 4 reverse gear transmission, providing versatility for various field applications and improving maneuverability in tight spaces. The 280mm dry disc clutch ensures reliable engagement and disengagement but may require more frequent adjustments under heavy load conditions. This tractor is ideal for medium-duty tasks, though operators should be aware of potential wear on the clutch with intensive use.

Gears	8 forward and 4 reverse
Clutch	280mm dry disc

TRANSMISSION 2

The International Harvester 734 tractor features a 12 forward and 4 reverse gear configuration, providing versatility in various field conditions and enhancing maneuverability during operations. The 280mm dry disc clutch offers reliable engagement and disengagement, but may require more frequent maintenance compared to hydraulic clutches, especially in heavy-duty applications. This configuration suits both agricultural and industrial scenarios, facilitating tasks like towing, plowing, and transporting materials.

Gears	12 forward and 4 reverse
Clutch	280mm dry disc

MECHANICAL

The International Harvester 734 features an optional 4WD MFWD chassis, enhancing traction in varying terrain, which is ideal for agricultural applications requiring better stability and soil preservation. Its mechanical rear differential lock and planetary final drives improve power distribution and handling, making it proficient in heavy field tasks. The availability of both 8-speed and 12-speed transmissions allows for versatile speed adjustments, beneficial for optimizing fuel efficiency and performance across different operational scenarios.

Chassis	4x2 2WD/4x4 MFWD 4WD
Final drives	planetary
Differential lock	mechanical rear
Steering	power
Brakes	disc
Cab	Cab standard with optional heater
Transmissions	8-speed 12-speed

TRACTOR HITCH

Rear Type

II

POWER TAKE-OFF (PTO)

Rear PTO	independent
Rear RPM	540/1000

INTERNATIONAL HARVESTER 734 TIRES

The International Harvester 734 tractor is available in both 2WD and 4WD configurations, with specific tire sizes influencing traction and stability. The 4WD setup, featuring larger front tires (11.2/10x24), offers improved grip in challenging terrains, beneficial for operations like tillage in soft soils. However, the 2WD version may be more fuel-efficient and cost-effective for lighter agricultural tasks on firm ground, but could face challenges with stability and traction in wet conditions.

2WD Standard tires (ag)	Front: 7.50x16. Rear: 16.9/14x34
4WD Standard tires (ag)	Front: 11.2/10x24. Rear: 16.9/14x34

DIMENSIONS

Wheelbase	83.5inches / 212cm
2WD Length	131.5inches / 334cm
4WD Length	136.6inches / 346cm
Width	74.4inches / 188cm
Height (steering wheel)	65inches / 165cm
2WD Weight	7477lbs / 3391kg
4WD Weight	8245lbs / 3739kg
2WD Front tread	51.6 to 70.1inches / 131to 178cm
4WD Front tread	59.1inches / 150cm
Rear tread	57.5 to 77.2inches / 146to 196cm

DIMENSIONS & TIRES

The International Harvester 734 features a compact wheelbase of 83.5 inches, enhancing maneuverability in tight agricultural settings. Weighing between 7477 and 8245 pounds, it offers stability during operation, although operators may face challenges with traction in muddy conditions due to its 2WD configuration. The specified tire dimensions, particularly the rear 16.9/14x34, contribute to significant ground engagement but may limit its suitability for heavier tillage tasks without additional rear ballast.

Wheelbase	83.5inches / 212cm
Weight	7477 to 8245 pounds
Front tire	7.50x16
2WD Rear tire	16.9/14x34

---

---