International Harvester

International Harvester 986

The International Harvester 986 is a row-crop tractor produced from 1976 to 1981 as part of the 86 Series. Built in Rock Island, Illinois, USA, a total of 20,554 units were made. It features a 7.1L 6-cylinder diesel engine, a 16-speed two-speed power shift transmission with Torque Amplifier, and offers two- or four-wheel drive options. The tractor has a power take-off (PTO) with independent rear PTO and is equipped with hydraulic disc brakes and power assist steering. The cab comes standard with air-conditioning, with options for an open operator station and four-post ROPS. The 986 Hi-Clear variant offers high clearance. It has a fuel capacity of 50 gallons plus an auxiliary 22-gallon tank, and a hydraulic system capacity of 22.5 gallons. Dimensions vary by configuration, with wheelbase ranging from 99 to 106 inches and operating weight up to 13,030 lbs. The tractor is known for its durability and versatility in row-crop farming.

Power116 hp[P]

Founded1976 - 1981

Model986

View Images

Technical Specifications

Detailed specifications and technical data for International Harvester 986

Power

PTO (tested)	105.68 hp (78.8 kW)
PTO (claimed)	105 hp (78.3 kW)
Drawbar (tested)	90.15 hp (67.2 kW)
Drawbar (claimed)	92 hp (68.6 kW)

Engine

Type	diesel
Model	International Harvester D-436
Cooling	liquid-cooled
Cylinders	6-cylinder
Rated RPM	2400
Air cleaner	dual dry element
Bore/Stroke	4.30x5.00 inches (109 x 127 mm)
Displacement	436 ci (7.1 L)
Oil capacity	14 qts (13.2 L)
Coolant capacity	26 qts (24.6 L)

Weight

Shipping	10,500 lbs (4762 kg), 12,350 lbs (Hi-Clear) (5601 kg)
Operating	13,030 lbs (2WD) (5910 kg)

Capacity

Fuel	50 gal (189.2 L)
Auxiliary tank	22 gal (83.3 L)
Hydraulic system	22.5 gal (85.2 L)

Variants

986 Hi-Clear	high clearance

Electrical

Ground	negative
Batteries	2
Battery CCA	470
Battery volts	12
Charging amps	42, 61 (with cab)
Charging system	alternator

Hydraulics

Type	open center
Valves	2
Capacity	22.5 gal (85.2 L)
Optional type	closed center (Optional after late 1980.)

Mechanical

Cab	standard with air-conditioning. Open operator station and four-post ROPS available.
Drive	Two- or four-wheel drive
Brakes	Hydraulic disc brakes
Steering	power assist
Final drives	bull gear

Production

Type	Row-Crop tractor
Series	86 Series
Built in	Rock Island, Illinois, USA
Total built	20,554
Original price	$31,100 (1981)
Years produced	1976 - 1981

Transmission

Type	two-speed power shift
Gears	16 forward and 8 reverse
Details	The transmission features three ranges (low, high, and reverse) with four gears (1-4) in each range. The Torque Amplifier (TA) provides an additional high/low selection for each speed. The range and gear can be shifted only when the tractor is stopped. The TA can be shifted while the tractor is in motion.
Oil type	IH Hy-Tran/B-6
Oil capacity	90 qts (85.2 L)
Transmission	Torque Amplifier

Tractor hitch

Rear Type	II
Rear lift (at 24"/610mm)	5760 lbs (2612 kg)

Serial Numbers

1976	8601
1977	11145
1978	15624
1979	19288
1980	22696
1981	25220

Dimensions & Tires

Width	102 inches (259 cm)
Length	167 inches (2WD) (424 cm), 163 inches (4WD) (414 cm), 169 inches (Hi-Clear) (429 cm)
Rear tire	18.4-38
Wheelbase	105 inches (wide-front) (266 cm), 101 inches (tricycle) (256 cm), 99 inches (4WD) (251 cm), 106 inches (Hi-Clear) (269 cm)
Front tire	10.00-16
Height (cab)	112 inches (284 cm), 125 inches (Hi-Clear) (317 cm)
Ground clearance	13 inches (33 cm), 26 inches (Hi-Clear) (66 cm)