International Harvester 1086

1976 - 1981

86 Series

Row-Crop tractor

Manufacturer

International Harvester

Row-Crop tractor

Built in Rock Island, Illinois, USA

Total built

47,420

Original price

$35,700 (1981)

1086 Hi-Clear

high clearance

International Harvester 6.8L 6-cyl diesel

Drawbar (claimed)

114 hp 85.0 kW

PTO (claimed)

130 hp 96.9 kW

Drawbar (tested)

113.04 hp 84.3 kW

PTO (tested)

131.41 hp 98.0 kW

Two- or four-wheel drive

Final drives

bull gear

Differential lock

mechanical rear OptOptional

Steering

power assist

Hydraulic disc brakes

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

Fuel

63 gal (main) 238.5 L

22 gal (auxilary) 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

Pump flow

12 gpm 45.4 lpm

Rear Type

III

Rear PTO

independent

Rear PTO Type

540/1000 (1.375)

Engine RPM

540@2100

1000@2100

Wheelbase

105 inches (wide-tread front) 266 cm

101 inches (tricycle front) 256 cm

99 inches (4WD) 251 cm

106 inches (Hi-Clear) 269 cm

Weight

12300 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 DT-414

Configuration

turbocharged diesel, 6-cylinder, liquid-cooled

Displacement

414 ci 6.8 L

Bore/Stroke

4.30x4.75 inches 109 x 121 mm

Air cleaner

dual dry element

Rated RPM

2400

Coolant capacity

25 qts 23.7 L

Oil capacity

20 qts 18.9 L

8-speed gear

16-speed two-speed power shift

Type

gear

Gears

8 forward and 4 reverse

Oil capacity

90 qts 85.2 L

The transmission features three ranges (low, high, and reverse) with four gears (1-4) in each range. The range and gear can be shifted only when the tractor is stopped.

With 18.4-38 rear tires.

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.

With 18.4-38 rear tires.

Ag front

10.00-16 (2WD)

13.6-24 (4WD)

Ag rear

18.4-38

Wheelbase

105 inches (wide-tread front) 266 cm

101 inches (tricycle front) 256 cm

99 inches (4WD) 251 cm

106 inches (Hi-Clear) 269 cm

Length

168 inches (2WD) 426 cm

165 inches (4WD) 419 cm

169 inches (Hi-Clear) 429 cm

Width

102 inches 259 cm

98 inches (Hi-Clear) 248 cm

Height (cab)

115 inches 292 cm

126 inches (Hi-Clear) 320 cm

Ground clearance

13 inches 33 cm

26 inches (Hi-Clear) 66 cm

Shipping

12,300 lbs 5579 kg

13,030 lbs (Hi-Clear) 5910 kg

Operating

12,715 lbs (2WD) 5767 kg

Diesel 16-speed 2WD June 2 - 14, 1977 Link: Nebraska Tractor Test 1247 file

PTO performance

Power at rated engine speed

131.41 hp 98.0 kW

Fuel use

8.6 gal/hour 32.6 l/hour

Power at rated PTO speed

133.67 hp 99.7 kW

Fuel use

8.2 gal/hour 31.0 l/hour

Drawbar performance

Max power

113.04 hp 84.3 kW

Fuel use

8.5 gal/hour 32.2 l/hour

Gear 1-Hi-TA used for power test.

Max pull

13,503 lbs 6124 kg

Gear 2-Lo-DD used for pull test.