1979 International 986 Tractor Walk Around & Operational Video $27,900
Video by DaporeBrothersLLC
Watch on YouTube ↗Skip to content
An independent tractor referenceSpecifications. Sources. Side by side.
TractorStack.
Search
Find your tractor.
Menu ☰
Years in Production / 1976–1981
International Harvester
986
Explore the specifications, hardware, and original references for the International Harvester 986.
No photo
116hp
Engine estimate · from PTO
MFWD Optional
Drive
1976–1981
Production years
International Harvester
Manufacturer
986 / 01
At a glance
Overview
1976 - 1981
86 Series
Row-Crop tractor
- Alternative Additional Value
- IH Hy-Tran/B-6
Production
Row-Crop tractor
Built in Rock Island, Illinois, USA
- Manufacturer
- International Harvester
- Total Built
- 20,554
- Original Price
- $31,100 (1981)
Mechanical
Two- or four-wheel drive
Hydraulic disc brakes
Cab standard with air-conditioning. Open operator station and four-post ROPS available.
- Final Drives
- bull gear
- Steering
- power assist
Capacity
- Fuel
- 50 gal189.2 L
- Fuel
- 22 gal (auxiliary tank)83.3 L
- Hydraulic System
- 22.5 gal85.2 L
Hydraulics
- Type
- open center
- Type
- closed center *Optional after late 1980.
- Capacity
- 22.5 gal85.2 L
- Valves
- 2
Hitch
- Rear Type
- II
- Rear Lift At24610mm
- 5760 lbs2612 kg
Pto
- Rear Pto
- independent
- Rear Type
- 540/1000 (1.375)
- Engine Rpm
- 540@2100
- Engine Rpm
- 1000@2100
Serial Numbers
FAQ: How to read a serial number table.
- 1976
- 8601
- 1977
- 11145
- 1978
- 15624
- 1979
- 19288
- 1980
- 22696
- 1981
- 25220
Electrical
- Ground
- negative
- Charging System
- alternator
- Charging Amps
- 42
- Charging Amps
- 61 (with cab)
- Batteries
- 2
- Battery Cca
- 470
- Battery Volts
- 12
986 / 02
Under the hood
Engine Detail
International Harvester D-436
diesel
6-cylinder
liquid-cooled
- Displacement
- 436 ci7.1 L
- Bore Stroke
- 4.30x5.00 inches109 x 127 mm
- Air Cleaner
- dual dry element
- Rated Rpm
- 2400
- Coolant Capacity
- 26 qts24.6 L
- Fuel Type
- diesel
- Cylinders
- 6
- Cooling
- liquid-cooled
- Oil Capacity
- 14 qts13.2 L
Engine Options
International Harvester 7.1L 6-cyl diesel
986 / 03
Gears & controls
International Harvester986 Transmission
16-speed two-speed power shift
Speeds
18.4-34 rear tires.
986 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 169 in429 cm
- Width
- 102 in259 cm
- Height (cab)
- 125 in317 cm
- Wheelbase
- 106 in269 cm
- Ground clearance
- 26 in66 cm
Dimensions And Tires
- Wheelbase
- 105 inches (wide-front)266 cm
- Wheelbase
- 101 inches (tricycle)256 cm
- Wheelbase
- 99 inches (4WD)251 cm
- Wheelbase
- 106 inches (Hi-Clear)269 cm
- Weight
- 10500 to 13030 pounds
- Front Tire
- 10.00-16
- Rear Tire
- 18.4-38
Serial Number Location
Rear frame, right side in front of rear axle.
Tires And Tracks
- Front Ag
- 10.00-16
- Rear Ag
- 18.4-38
See it in action
Videos
Watch International Harvester 986 videos from their original YouTube creators.
986 / 06
Tests (NTTL)
Nebraska Tractor Test 1255
Diesel Torque Amplifier 2WDSeptember 15 - 29, 1977
PTO performance
Drawbar performance
Gear 4-Low-Direct used for power test.
Gear 2-Low-Direct used for pull test.
- Id
- 1255
- Power At Rated Engine Speed
- 105.68 hp78.8 kW
- Fuel Use
- 7.2 gal/hour27.3 l/hour
- Fuel Use
- 6.8 gal/hour25.7 l/hour
- Fuel Use
- 7.1 gal/hour26.9 l/hour
- Power At Rated Pto Speed
- 105.68 hp78.8 kW
- Max Power
- 90.15 hp67.2 kW
- Max Pull
- 12,176 lbs5523 kg