International Harvester 784 tractor specifications

1977 - 1984

1977 - 1984 84 SeriesUtility tractor

Series:

Series:684 ← 784 → 884

1977 - 1984

84 Series

Utility tractor

Production

Production
Manufacturer:	International Harvester
Type:	Utility tractor
Factory:	Doncaster, England
Original price:	$21,100 (1984 )

International Harvester 684 Power

International Harvester 684 Power
Engine:	69 hp 51.5 kW
Drawbar (claimed):	55.9 hp 41.7 kW
PTO (claimed):	62.5 hp 46.6 kW
Plows:	4
Drawbar (tested):	54.56 hp 40.7 kW
PTO (tested):	62.52 hp 46.6 kW
power test details ...

International Harvester 684 Engine

International Harvester 684 Engine
International Harvester 3.9L 4-cyl diesel
Engine details ...

Mechanical

Mechanical
Chassis:	4x2 2WD
	4x4 MFWD 4WD
Steering:	power
Brakes:	independent hydraulic wet disc
Cab:	ROPS canopy or cab optional
Transmissions:	8-speed syncromesh
	16-speed two-speed power shift
Transmission details ...

Capacity

Capacity
Fuel:	20 gal 75.7 L
Hydraulic system:	9 gal 34.1 L

Hydraulics

Hydraulics
Type:	open center
Capacity:	9 gal 34.1 L
Valves:	1 or 2
Pump flow:	13 gpm 49.2 lpm
	15.4 gpm 58.3 lpm (optional)

Tractor hitch

Tractor hitch
Rear Type:	II
Control:	position and draft control
Rear lift:	3600 lbs 1632 kg

Power Take-off (PTO)

Power Take-off (PTO)
Rear PTO:	independent
Clutch:	hydraulic wet disc
Rear RPM:	540

Dimensions & Tires

Dimensions & Tires
Utility Wheelbase:	88 inches 223 cm
Row-crop Wheelbase:	84.5 inches 214 cm
4WD Wheelbase:	85.2 inches 216 cm
Low-profile Wheelbase:	83.75 inches 212 cm
Weight:	5620 to 6765 pounds
Front tire:	7.50-16
Rear tire:	16.9-30
Full dimensions and tires ...

684 Serial Numbers

684 Serial Numbers
Location:	Front axle support on right side of tractor.
1978:	501
1979:	1687
1980:	3533
1981:	6037
1982:	8001
1983:	8512
how to read serial numbers...

Electrical

Electrical
Ground:	negative
Charging amps:	45
Battery volts:	12

Production

Production Manufacturer:International Harvester
Type:Utility tractor
Factory:Doncaster, England
Original price:$22,300 (1984 )
The International Harvester 784 was available in three configurations: row-crop, utility, and low-profile. The front axle and rear wheel were the primary difference between the three versions of the 784.

International Harvester 784 Power

International Harvester 784 Power Drawbar (claimed):58.6 hp
43.7 kW
PTO (claimed):67.4 hp
50.3 kW
Drawbar (tested):56.83 hp
42.4 kW
PTO (tested):67.48 hp
50.3 kW
power test details ...

1977 - 1984

84 Series

Utility tractor

Series:

684 ←

784

→ 884

Nebraska Tractor Test 1315

Nebraska Tractor Test 1315
Diesel 8-speed 2WD May 24 - June 2, 1979 Link: Nebraska Tractor Test 1315 file
PTO performance
Power at rated engine speed:	67.48 hp 50.3 kW
Fuel use:	4.3 gal/hour 16.3 l/hour
Power at rated PTO speed:	61.28 hp 45.7 kW
Fuel use:	3.9 gal/hour 14.8 l/hour
Drawbar performance
Max power:	56.83 hp 42.4 kW
Fuel use:	4.3 gal/hour 16.3 l/hour

International Harvester 784 Engine

International Harvester 784 Engine International Harvester 4.0L 4-cyl diesel Engine details ...

1977 - 1984

84 Series

Utility tractor

Series:

684 ←

784

→ 884

Engine Detail

Engine Detail
International Harvester D-246
diesel
4-cylinder
liquid-cooled
Displacement:	246 ci 4.0 L
Bore/Stroke:	3.94x5.06 inches 100 x 129 mm
Air cleaner:	dry
Compression:	15.5:1
Rated RPM:	2400
Starter volts:	12
Oil capacity:	8.8 qts 8.3 L
Coolant capacity:	14.4 qts 13.6 L

Mechanical

Mechanical 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
Transmission details ...

1977 - 1984

84 Series

Utility tractor

Series:

684 ←

784

→ 884

Transmissions overview

Transmissions overview
8-speed syncromesh
16-speed two-speed power shift

Transmission

Transmission
Type:	syncromesh
Gears:	8 forward and 4 reverse
Clutch:	dry disc
Oil capacity:	36 qts 34.1 L
Four synchronized gears in high, low, and reverse ranges.

Speeds

Speeds
With 15.8-38 rear tires.

Transmission

Transmission
Transmission:	Torque Amplifier
Type:	two-speed power shift
Gears:	16 forward and 8 reverse
Oil capacity:	36 qts 34.1 L
The Torque Amplifier (TA) provides a power shift (clutchless, on the move) from direct drive (DD) to a lower TA speed.

Speeds

Speeds
With 15.8-38 rear tires.

Capacity

Capacity Fuel:20 gal
75.7 L
Hydraulic system:9 gal
34.1 L

Hydraulics

Hydraulics Type:open center
Capacity:9 gal
34.1 L
Valves:1 or 2
Pump flow:13 gpm
49.2 lpm
15.4 gpm
58.3 lpm (optional)

Tractor hitch

Tractor hitch Rear Type:II
Control:position and draft control
Rear lift:3600 lbs
1632 kg

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:independent
Clutch:hydraulic wet disc
Rear RPM:540/1000

Dimensions & Tires

Dimensions & Tires Utility Wheelbase:88 inches
223 cm
Row-crop Wheelbase:84.5 inches
214 cm
4WD Wheelbase:85.2 inches
216 cm
Low-profile Wheelbase:83.75 inches
212 cm
Weight:5850 to 7108 pounds
Front tire:7.50-16
Rear tire:16.9-30
Full dimensions and tires ...

1977 - 1984

84 Series

Utility tractor

Series:

684 ←

784

→ 884

International Harvester 784 Tires

International Harvester 784 Tires
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

Dimensions
Utility Wheelbase:	88 inches 223 cm
Row-crop Wheelbase:	84.5 inches 214 cm
4WD Wheelbase:	85.2 inches 216 cm
Low-profile Wheelbase:	83.75 inches 212 cm
Utility Length:	142 inches 360 cm
Row-crop Length:	139 inches 353 cm
4WD Length:	148.2 inches 376 cm
Low-profile Length:	142 inches 360 cm
Utility Width:	74 inches 187 cm
Row-crop Width:	75 inches 190 cm
4WD Width:	74 inches 187 cm
Low-profile Width:	78.5 inches 199 cm
Utility19.7 row-crop} Ground clearance:	17.75 inches 45 cm
4WD Ground clearance:	18.65 inches 47 cm
Low-profile Ground clearance:	10.7 inches 27 cm

International Harvester 784 Weight

International Harvester 784 Weight
Utility Shipping:	5950 lbs 2698 kg
Row-crop Shipping:	6200 lbs 2812 kg
4WD Shipping:	7108 lbs 3224 kg
Low-profile Shipping:	5850 lbs 2653 kg
Ballasted:	9920 lbs 4499 kg

International Harvester 784 Height

International Harvester 784 Height
Utility Steering wheel:	63 inches 160 cm
Row-crop Steering wheel:	65 inches 165 cm
4WD Steering wheel:	63 inches 160 cm
Low-profile Steering wheel:	56.5 inches 143 cm

784 Serial Numbers

784 Serial Numbers Location:Front axle support on right side
1978:501
1979:1442
1980:2752
1981:5906
1982:8001
1983:8219

how to read serial numbers...