International Harvester 434

The International Harvester 434 is a classic tractor model that was well-known for its reliability and versatility. It was a part of the International Harvester lineup, which was recognized for producing rugged and dependable agricultural machinery. The 434 was favored by farmers and landowners for its powerful diesel engine and robust build, making it suitable for a wide range of farm tasks. Its straightforward design and power steering also contributed to its ease of use. Over the years, the International Harvester 434 has earned a reputation as a dependable workhorse that played a vital role in agricultural operations.
Engine ModelInternational Harvester BD154
Engine TypeDiesel, 4-stroke 4-cylinder water-cooled
Number of Cylinders4
Displacement154 cubic inches (2.50 liters)
Engine Bore3.50 inches (89.0 mm)
Engine Stroke4.00 inches (102.0 mm)
AspirationNaturally aspirated
Rated Engine Power43.0 hp (32.1 kW)
Rated Engine Speed2000 rpm
Maximum Torque156 Nm (115 ft-lbs)
Torque Speed1300 rpm
Firing Order1-3-4-2
Fuel SystemIndirect injection
Air CleanerDry
Fuel Tank Capacity12.7 gallons (48.1 liters)
Oil Capacity6.0 quarts (5.7 liters)
Coolant Capacity11.0 quarts (10.4 liters)
Electrical System Rating12 Volts
Power Take-Off (PTO)
PTO Operational TypeContinuous
PTO Horsepower38.0 hp (28.2 kW)
PTO Speed540 rpm
PTO / Engine Speed540/2000 rpm
Transmission TypeSliding gear
Gearbox Type8 forward gears, 2 reverse gears (8F/2R)
Clutch TypeDry disc
Oil Capacity6.3 quarts (5.9 liters)
Maximum Forward Speed14.0 mph (22.5 kph)
Maximum Reverse Speed6.5 mph (10.5 kph)
Wheels and Tires
Drive Wheels2WD 4×2
Steering ConfigurationFront steer
Steering SystemPower steering
Brakes TypeDifferential mechanical dry disc
Front Tire Size7.50-16
Rear Tire Size12.4-32
Hydraulic System
Hydraulic System TypeOpen center
Implement Pump TypeGear
Implement Pump Flow7.0 gpm (26.5 Lpm)
Number of Standard Remote Valves0/2
3-Point Hitch Category1
Standard Lift Capacity at lift pin2580 lb (1170 kg)
Dimensions and Weight
Wheelbase76.4 inches (1940 mm)
Length118.1 inches (2990 mm)
Height87.4 inches (2210 mm)
Overall Width64 inches (1620 mm)
Ground Clearance18.5 inches (460 mm)
Weight4630 lb (2100 kg)
International Harvester 434 Advantages:
Reliability: The International Harvester 434 is known for its legendary reliability and durability. It was designed to withstand rugged farm conditions and heavy workloads.
Diesel Engine: Equipped with a diesel engine, it provides ample power and torque for various agricultural tasks, making it suitable for plowing, tilling, and other demanding applications.
Hydraulic System: The tractor features a hydraulic system with a decent flow rate, allowing it to operate hydraulic implements and attachments effectively.
Power Steering: The inclusion of power steering enhances maneuverability and reduces operator fatigue, making it easier to handle in the field.
Versatility: It is compatible with a range of implements, making it a versatile choice for different farm operations and tasks.
International Harvester 434 Disadvantages:
Age: The International Harvester 434 is an older tractor model, which means it may be more challenging to find replacement parts and experienced mechanics for servicing and repairs.
Limited Speed: With a maximum forward speed of 14.0 mph (22.5 kph), it may be slower compared to modern tractors, potentially affecting efficiency during transport and fieldwork.
Fuel Consumption: Diesel engines are generally more fuel-efficient than gasoline engines, but fuel costs can still be significant for extended use.
Lack of Modern Features: It lacks many modern features and technology found in contemporary tractors, which may limit operator comfort and convenience.
Weight: The tractor is relatively heavy, which can lead to soil compaction in some conditions and may require care when working on softer ground.

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