International Harvester 785 Tractor

Manufacturer International Harvester
Price -
Model 785
Equipment Type Utility Tractors
Factory Doncaster, England

INTERNATIONAL HARVESTER 785 POWER

Engine (gross) 80hp / 59.7kW
Engine (net) 77.4hp / 57.7kW
PTO (claimed) 68.3hp / 50.9kW

ENGINE DETAIL

The International Harvester 785 features a D246 diesel engine with a robust 80 hp and impressive torque of 263 lb-ft at 1600 RPM, providing strong low-end power for demanding tasks. The direct injection fuel system enhances fuel efficiency and combustion performance, making this tractor well-suited for heavy agricultural work. However, its relatively low rated RPM (2300) may limit high-speed fieldwork, potentially impacting efficiency when compared to higher RPM tractors in certain scenarios, such as long-distance hauling.

Description International Harvester D246 diesel 4-cylinder liquid-cooled
Displacement 246ci / 4.0L
Bore/Stroke 3.94x5.06inches / 100x 129 mm
Power (gross) 80hp / 59.7kW
Fuel system direct injection
Rated RPM 2300
Torque 263 lb-ft /356.6 Nm
Torque RPM 1600
Starter electric
Starter volts 12

INTERNATIONAL HARVESTER 785 ENGINE

The International Harvester 785 features a robust 4.0L 4-cylinder diesel engine, providing reliable power for various agricultural tasks. With a fuel tank capacity of 29.6 gallons (112.0 liters), it allows for extended operational periods, reducing downtime for refueling in larger fields. However, its performance may be limited in high-demand scenarios, where larger horsepower and torque may be preferable.

Description International Harvester 4.0L 4-cyl diesel
Fuel tank 29.6gal / 112.0L

TRANSMISSIONS OVERVIEW

The International Harvester 785 tractor features an 8-speed synchromesh transmission, which allows for smooth shifting and optimal power transfer under varying load conditions. Additionally, the 16-speed two-speed power shift enhances versatility, enabling operators to adapt to different terrains and task requirements efficiently. However, the complexity of the power shift system may present maintenance challenges and requires operator training for optimal use.

Description 8-speed synchromesh/16-speed two-speed power shift

TRANSMISSION 1

The International Harvester 785 features a synchromesh transmission with 8 forward and 4 reverse gears that enhance operational flexibility through its dual-range (low/high) functionality. The gear configuration allows for effective torque management and speed adaptation, making it suitable for varied tasks such as plowing, tilling, and transporting. However, users may face a learning curve in gear shifting, impacting efficiency during initial operation stages.

Type synchromesh
Gears 8 forward and 4 reverse
Description Four gears (1-4) in two ranges (low/high) plus reverse range.

TRANSMISSION 2

The International Harvester 785 features a two-speed power shift transmission with 16 forward and 8 reverse gears, providing enhanced versatility for various field conditions. The inclusion of a torque amplifier allows for improved torque management during operations, which can aid in handling challenging terrains but may require careful modulation to avoid overloading. This transmission setup is advantageous for tasks like plowing or transporting heavy loads, offering operators efficient speed and power control.

Transmission Torque Amplifier
Type two-speed power shift
Gears 16 forward and 8 reverse

MECHANICAL

The International Harvester 785 tractor offers a versatile 2WD/4WD configuration, making it suitable for various terrain conditions, particularly when utilizing the rear differential lock for enhanced traction in challenging scenarios. The power steering and hydraulic wet disc brakes provide improved maneuverability and safety during operation, crucial for heavy-duty tasks. The availability of both Economy and Deluxe cabs allows operators to choose comfort levels, with the 8-speed synchromesh or 16-speed two-speed power shift transmissions offering flexibility in speed control and efficiency for diverse agricultural applications.

Chassis 4x2 2WD/4x4 MFWD 4WD
Differential lock rear standard
Steering power
Brakes hydraulic wet disc
Cab Cab standard. Economy and Deluxe cabs available.
Transmissions 8-speed synchromesh/16-speed two-speed power shift

HYDRAULICS

Pump flow 12.4gpm / 46.9lpm

TRACTOR HITCH

Rear Type II
Control position and draft control
Rear lift 4400lbs / 1995kg/5250lbs / 2381kg *With optional assistor ram

POWER TAKE-OFF (PTO)

Rear PTO independent
Clutch hydraulic wet disc
Rear RPM 540/1000

INTERNATIONAL HARVESTER 785 TIRES

The International Harvester 785 tractor offers two-wheel drive (2WD) and four-wheel drive (4WD) configurations, enhancing versatility across various agricultural tasks. The 10.00-16 front tires provide stability in 2WD setups, while the 12.4-24 front tires in 4WD improve traction in demanding conditions. Additionally, the 16.9-34 rear tires ensure adequate power transfer and load-bearing capacity, making it suitable for heavy implements and challenging terrains.

2WD Ag front 10.00-16
4WD Ag front 12.4-24
Ag rear 16.9-34

DIMENSIONS

Wheelbase 88.19inches / 224cm
Length 147.6inches / 374cm
Height 104inches / 264cm

DIMENSIONS & TIRES

The International Harvester 785 tractor features a wheelbase of 88.19 inches (224 cm), providing enhanced stability and maneuverability, particularly in tight field conditions. The front tires (10.00-16) offer good flotation and traction, while the larger rear tires (16.9-34) contribute to improved power transfer and efficiency on softer terrains. However, the selected tire sizes may limit compatibility with narrower rows, so assess field layout before deployment.

Wheelbase 88.19inches / 224cm
Front tire 10.00-16
Rear tire 16.9-34

785 SERIAL NUMBERS

Location Serial number plate on right front of tractor frame, above the front axle.


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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