International Harvester 4786

The International Harvester 4786 is a tractor produced by International Harvester. It is equipped with a 798 ci 13.1 L engine. The rated power output is 350 hp 261.0 kW. Transmission: 10 forward and 2 reverse. Operating weight: 30200 lbs 13698 kg.

Overview

	1978 - 1981 Four-wheel Drive (4WD) tractorSteiger built
1978 - 1981
Four-wheel Drive (4WD) tractor
Steiger built

1978 - 1981
Four-wheel Drive (4WD) tractor
Steiger built

Production
Distributor	International Harvester
Manufacturer	Steiger
Four-wheel Drive (4WD) tractor
Built in Fargo, North Dakota, USA
Original price was $78,700 in 1981

International Harvester 4786 Engine
International Harvester 13.1L 8-cyl diesel
Fuel tank	194 gal 734.3 L
Engine details ...

International Harvester 4786 Transmission
10-speed gear
Transmission details ...

International Harvester 4786 Power
Engine	350 hp 261.0 kW
Drawbar (claimed)	260 hp 193.9 kW
Drawbar (tested)	258.20 hp 192.5 kW
Performance test details ...

Mechanical
Four-wheel drive
Final drives	planetary
Hydraulic wet disc brakes
Cab standard with air-conditioning.

Hydraulics
Type	open center
Pump flow	19 gpm 71.9 lpm
Total flow	43 gpm 162.8 lpm
Steering flow	24 gpm 90.8 lpm

Tractor hitch
Rear Type	IV OptOptional

Dimensions & Tires
Wheelbase	118 inches 299 cm
Weight	30200 lbs 13698 kg
Front tire	24.5-32
Rear tire	24.5-32
Full dimensions and tires ...

References
1979 Buyer's Guide published by International Harvester
Buyer's Guide 1981 published by International Harvester
Buyer's Guide 1982 published by International Harvester

Engine

	1978 - 1981 Four-wheel Drive (4WD) tractorSteiger built
1978 - 1981
Four-wheel Drive (4WD) tractor
Steiger built

1978 - 1981
Four-wheel Drive (4WD) tractor
Steiger built

Engine Detail — 798 ci / 13.1 L Diesel

Manufacturer	International Harvester DVT-800
Configuration	turbocharged diesel, 8-cylinder, liquid-cooled
Displacement	798 ci 13.1 L
Bore/Stroke	5.31x4.50 inches 135 x 114 mm
Power	350 hp 261.0 kW
Air cleaner	dry
Compression	15.6:1
Rated RPM	2600
Idle RPM	1000-2850
Starter volts	12

Transmission

	1978 - 1981 Four-wheel Drive (4WD) tractorSteiger built
1978 - 1981
Four-wheel Drive (4WD) tractor
Steiger built

1978 - 1981
Four-wheel Drive (4WD) tractor
Steiger built

Transmission — 10 forward and 2 reverse gear

Type	gear
Gears	10 forward and 2 reverse
Clutch	dry disc

Dimensions

	1978 - 1981 Four-wheel Drive (4WD) tractorSteiger built
1978 - 1981
Four-wheel Drive (4WD) tractor
Steiger built

1978 - 1981
Four-wheel Drive (4WD) tractor
Steiger built

International Harvester 4786 Tires
Ag front	24.5-32
Ag rear	24.5-32

Dimensions
Wheelbase	118 inches 299 cm
Length	241 inches 612 cm
Width	117 inches 297 cm
Operating weight	30200 lbs*Weight with 23.1-30 duals. 13698 kg
Front axle	4 inch diameter 101 mm
Rear axle	4 inch diameter 101 mm
Front tread	68.1 to 125.1 inches 172 to 317 cm
Rear tread	68.1 to 125.1 inches 172 to 317 cm

International Harvester 4786 Height
Hood	95 inches 241 cm
Cab	134 inches 340 cm
Exhaust	146 inches 370 cm

Tests

	1978 - 1981 Four-wheel Drive (4WD) tractorSteiger built
1978 - 1981
Four-wheel Drive (4WD) tractor
Steiger built

1978 - 1981
Four-wheel Drive (4WD) tractor
Steiger built

Nebraska Tractor Test 1317
Diesel 10-speed 4WD May 23 - 29, 1979 Link: Nebraska Tractor Test 1317 file
Drawbar performance
Max power	258.20 hp 192.5 kW
Fuel use	20.2 gal/hour 76.5 l/hour
Gear 3H used for power test.
Max pull	33468 lbs 15181 kg
Gear 1H used for pull test.

Photos

International Harvester 4786

International Harvester 4786

International Harvester 4786

International Harvester 4786

International Harvester 4786

International Harvester 4786