| Manufacturer | International Harvester |
| Price | 22,300(USD) |
| Model | 784 |
| Equipment Type | Utility Tractors |
| Factory | Doncaster, England |
NEBRASKA TRACTOR TEST 1315 2
| Description | Diesel 8-speed 2WD May 24 - June 2, 1979 Link: Nebraska Tractor Test 1315 file PTO performance Drawbar performance |
| Power at rated engine speed | 67.48hp / 50.3kW |
| Fuel use | 4.3gal/hour / 16.3l/hour |
| Power at rated PTO speed | 61.28hp / 45.7kW |
| Max power | 56.83hp / 42.4kW |
INTERNATIONAL HARVESTER 784 POWER
| Drawbar (claimed) | 58.6hp / 43.7kW |
| PTO (claimed) | 67.4hp / 50.3kW |
| Drawbar (tested) | 56.83hp / 42.4kW |
| PTO (tested) | 67.48hp / 50.3kW |
ENGINE DETAIL
The International Harvester 784 features a robust D-246 diesel engine with a high compression ratio of 15.5:1, ensuring efficient combustion and better torque output at its rated RPM of 2400. Its dry air cleaner and substantial oil (8.8 quarts) and coolant capacities (14.4 quarts) contribute to prolonged engine life and reduced maintenance frequency. However, the relatively high bore/stroke ratio (3.94x5.06 inches) may affect engine responsiveness under varying load conditions, necessitating careful throttle management in intensive applications.
| Description | International Harvester D-246 diesel 4-cylinder liquid-cooled |
| Displacement | 246ci / 4.0L |
| Bore/Stroke | 3.94x5.06inches / 100x 129 mm |
| Air cleaner | dry |
| Compression | 15.5:1 |
| Rated RPM | 2400 |
| Starter volts | 12 |
| Oil capacity | 8.8qts / 8.3L |
| Coolant capacity | 14.4qts / 13.6L |
INTERNATIONAL HARVESTER 784 ENGINE
The International Harvester 784 features a robust 4.0L 4-cylinder diesel engine, providing efficient fuel consumption and adequate torque for various agricultural tasks. Its compact size and maneuverability make it ideal for small to medium farms, though it may face challenges in handling larger implements due to its limited horsepower. Pros include reliability and ease of maintenance, while cons could be the lower power output compared to larger models, which may restrict its use in high-demand applications.
| Description | International Harvester 4.0L 4-cyl diesel |
TRANSMISSIONS OVERVIEW
The International Harvester 784 features an 8-speed syncromesh gearbox, which allows for smoother gear transitions ideal for varied field conditions. Its 16-speed two-speed power shift system enhances operational versatility, providing efficient power delivery and minimizing power loss during shifting. However, operators should be aware of potential maintenance complexities due to the advanced transmission design, which may require specialized knowledge for optimal service and repairs.
| Description | 8-speed syncromesh 16-speed two-speed power shift |
TRANSMISSION 1
The International Harvester 784 features a syncromesh transmission with 8 forward and 4 reverse gears, allowing smooth gear transitions which enhance operational efficiency. The dry disc clutch promotes durability but may require more effort in high-load scenarios compared to wet clutches. With an oil capacity of 36 quarts, maintaining optimal lubrication is essential for preventing overheating and ensuring longevity during intensive agricultural tasks.
| Type | syncromesh |
| Gears | 8 forward and 4 reverse |
| Clutch | dry disc |
| Oil capacity | 36qts / 34.1L |
| Description | Four synchronized gears in high, low, and reverse ranges. |
SPEEDS 1
| Description | With 15.8-38 rear tires |
TRANSMISSION 2
The International Harvester 784 features a two-speed Torque Amplifier transmission, allowing for seamless, clutchless shifting between direct drive and low-speed operation, enhancing efficiency during tasks that require varying torque levels. With 16 forward and 8 reverse gears, it provides versatile speed options, making it suitable for different field activities. The oil capacity of 36 quarts ensures adequate lubrication for smooth transmission operation, though regular maintenance is essential to prevent potential overheating or wear in high-demand scenarios.
| Transmission | Torque Amplifier |
| Type | two-speed power shift |
| Gears | 16 forward and 8 reverse |
| Oil capacity | 36qts / 34.1L |
| Description | The Torque Amplifier (TA) provides a power shift (clutchless, on the move) from direct drive (DD) to a lower TA speed. |
SPEEDS 2
| Description | With 15.8-38 rear tires |
MECHANICAL
The International Harvester 784 tractor offers a versatile 4WD option, which enhances traction and stability for various agricultural tasks. Its independent hydraulic wet disc brakes provide reliable stopping power, improving safety during operation, while the optional cab and canopy enhance operator comfort. The 8-speed syncromesh or 16-speed two-speed power shift transmissions allow for efficient speed adjustment, making it suitable for tasks requiring precision and control, such as planting and tilling.
| Chassis | 4x2 2WD/4x4 MFWD 4WD |
| Steering | power |
| Brakes | independent hydraulic wet disc |
| Cab | ROPS standard, except on low-profile. Canopy optional. Cab optional on row-crop. |
| Transmissions | 8-speed syncromesh/16-speed two-speed power shift |
CAPACITY
| Fuel | 20gal / 75.7L |
| Hydraulic system | 9 gal /34.1 L |
HYDRAULICS
| Type | open center |
| Capacity | 9 gal /34.1 L |
| Valves | 1 or 2 |
| Pump flow | 13gpm / 49.2lpm/15.4gpm / 58.3lpm (optional) |
TRACTOR HITCH
| Rear Type | II |
| Control | position and draft control |
| Rear lift | 3600lbs / 1632kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Clutch | hydraulic wet disc |
| Rear RPM | 540/1000 |
INTERNATIONAL HARVESTER 784 TIRES
The International Harvester 784 tractor features versatile tire options, allowing for optimized performance in various agricultural settings. The available front tire sizes (7.50-16 for row-crop and 9.00-10 for low-profile) enhance maneuverability, while the rear tire choices (16.9-30 utility, 15.8-38 row-crop, and 18.4-16.1 low-profile) facilitate stability and traction tailored to specific crop types. Key considerations include tire selection aligning with operational terrain and crop requirements, which can significantly impact productivity and soil compaction.
| Ag front | 7.50-16 (row-crop)/9.00-10 (low-profile) |
| Ag rear | 16.9-30 (utility)/15.8-38 (row-crop)/18.4-16.1 (low-profile) |
DIMENSIONS
| Utility Wheelbase | 88inches / 223cm |
| Row-crop Wheelbase | 84.5inches / 214cm |
| 4WD Wheelbase | 85.2inches / 216cm |
| Low-profile Wheelbase | 83.75inches / 212cm |
| Utility Length | 142inches / 360cm |
| Row-crop Length | 139inches / 353cm |
| 4WD Length | 148.2inches / 376cm |
| Low-profile Length | 142inches / 360cm |
| Utility Width | 74inches / 187cm |
| Row-crop Width | 75inches / 190cm |
| 4WD Width | 74inches / 187cm |
| Low-profile Width | 78.5inches / 199cm |
| Utility19.7 row-crop} Ground clearance | 17.75inches / 45cm |
| 4WD Ground clearance | 18.65inches / 47cm |
| Low-profile Ground clearance | 10.7inches / 27cm |
INTERNATIONAL HARVESTER 784 WEIGHT
| Utility Shipping | 5950lbs / 2698kg |
| Row-crop Shipping | 6200lbs / 2812kg |
| 4WD Shipping | 7108lbs / 3224kg |
| Low-profile Shipping | 5850lbs / 2653kg |
| Ballasted | 9920lbs / 4499kg |
INTERNATIONAL HARVESTER 784 HEIGHT
| Utility Steering wheel | 63inches / 160cm |
| Row-crop Steering wheel | 65inches / 165cm |
| 4WD Steering wheel | 63inches / 160cm |
| Low-profile Steering wheel | 56.5inches / 143cm |
DIMENSIONS & TIRES
The International Harvester 784 tractor features a versatile wheelbase ranging from 83.75 to 88 inches, allowing for adaptability across utility and row-crop applications. Its weight, from 5850 to 7108 pounds, provides stability, but could challenge maneuverability in tight spaces. The tire sizes (front: 7.50-16; rear: 16.9-30) enhance traction and load-carrying capacity, making the 784 well-suited for various agricultural tasks.
| Utility Wheelbase | 88inches / 223cm |
| Row-crop Wheelbase | 84.5inches / 214cm |
| 4WD Wheelbase | 85.2inches / 216cm |
| Low-profile Wheelbase | 83.75inches / 212cm |
| Weight | 5850 to 7108 pounds |
| Front tire | 7.50-16 |
| Rear tire | 16.9-30 |
784 SERIAL NUMBERS
| Location | Front axle support on right side |
| 1978 | 501 |
| 1979 | 1442 |
| 1980 | 2752 |
| 1981 | 5906 |
| 1982 | 8001 |
| 1983 | 8219 |
ELECTRICAL
| Ground | negative |
| Battery volts | 12 |