International Harvester 986

1976 - 1981

86 Series

Row-Crop tractor

Manufacturer

International Harvester

Row-Crop tractor

Built in Rock Island, Illinois, USA

Total built

20,554

Original price

$31,100 (1981)

986 Hi-Clear

high clearance

International Harvester 7.1L 6-cyl diesel

16-speed two-speed power shift

Drawbar (claimed)

92 hp 68.6 kW

PTO (claimed)

105 hp 78.3 kW

Drawbar (tested)

90.15 hp 67.2 kW

PTO (tested)

105.68 hp 78.8 kW

Two- or four-wheel drive

Final drives

bull gear

Steering

power assist

Hydraulic disc brakes

Cab standard with air-conditioning. Open operator station and four-post ROPS available.

Fuel

50 gal 189.2 L

22 gal (auxiliary tank) 83.3 L

Hydraulic system

22.5 gal 85.2 L

Type

open center

closed center *Optional after late 1980.

Capacity

22.5 gal 85.2 L

Valves

2

Rear Type

II

Rear lift (at 24"/610mm)

5760 lbs 2612 kg

Rear PTO

independent

Rear PTO Type

540/1000 (1.375)

Engine RPM

540@2100

1000@2100

Wheelbase

105 inches (wide-front) 266 cm

101 inches (tricycle) 256 cm

99 inches (4WD) 251 cm

106 inches (Hi-Clear) 269 cm

Weight

10500 to 13030 pounds

Front tire

10.00-16

Rear tire

18.4-38

Ground

negative

Charging system

alternator

Charging amps

42

61 (with cab)

Batteries

2

Battery CCA

470

Battery volts

12

1978 Buyer's Guide published by International Harvester

1979 Buyer's Guide published by International Harvester

Buyer's Guide 1981 published by International Harvester

Series 86 Tractors published in 1976, by International Harvester

86 Series Tractors - The pro-ag line published in 1976, by International Harvester

Operator's Manual 786, 886, 986, 1086, 1486, 1586 and Hydro-186 Tractors (1096207R4) published in 1986

Manufacturer

International Harvester D-436

Fuel Type

Diesel

Configuration

6-cylinder, liquid-cooled

Displacement

436 ci 7.1 L

Bore/Stroke

4.30x5.00 inches 109 x 127 mm

Air cleaner

dual dry element

Rated RPM

2400

Coolant capacity

26 qts 24.6 L

Oil capacity

14 qts 13.2 L

Transmission

Torque Amplifier

Type

two-speed power shift

Gears

16 forward and 8 reverse

Oil capacity

90 qts 85.2 L

Oil type

IH Hy-Tran/B-6

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.

18.4-34 rear tires.

Ag front

10.00-16

Ag rear

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

Length

167 inches (2WD) 424 cm

163 inches (4WD) 414 cm

169 inches (Hi-Clear) 429 cm

Width

102 inches 259 cm

Height (cab)

112 inches 284 cm

125 inches (Hi-Clear) 317 cm

Ground clearance

13 inches 33 cm

26 inches (Hi-Clear) 66 cm

Shipping

10,500 lbs 4762 kg

12,350 lbs (Hi-Clear) 5601 kg

Operating

13,030 lbs (2WD) 5910 kg

Diesel Torque Amplifier 2WD September 15 - 29, 1977 Link: Nebraska Tractor Test 1255 file

PTO performance

Power at rated engine speed

105.68 hp 78.8 kW

Fuel use

7.2 gal/hour 27.3 l/hour

Power at rated PTO speed

105.68 hp 78.8 kW

Fuel use

6.8 gal/hour 25.7 l/hour

Drawbar performance

Max power

90.15 hp 67.2 kW

Fuel use

7.1 gal/hour 26.9 l/hour

Gear 4-Low-Direct used for power test.

Max pull

12,176 lbs 5523 kg

Gear 2-Low-Direct used for pull test.