International Harvester 1086

Name: International Harvester 1086
Brand: International Harvester

Power

144 hp[P] hp

Production

1976-1981

Engine

6-cylinder

Transmission

Gear

Drive

2WD/4WD

140–200 HP 1970s 1980s

From the same series:

Hydro 186

1486

Introduction

International Harvester 1086 Row-Crop Tractor

The International Harvester 1086 is a row-crop tractor produced between 1976 and 1981 in Rock Island, Illinois. Designed for heavy-duty field applications, this 144-horsepower machine served as a core model in the International Harvester lineup during the late 1970s.

Engine and Performance

The tractor is powered by a 6.8-liter (414 cubic inch) 6-cylinder liquid-cooled engine. It operates at a rated speed of 2400 RPM, providing consistent power for demanding agricultural operations. The engine features a dual dry element air cleaner to ensure efficient operation in dusty field environments.

Transmission and Drivetrain

The 1086 offers two primary transmission configurations: a standard 8-speed gear transmission or a 16-speed transmission equipped with a Torque Amplifier (TA). The TA system functions as a two-speed power shift, allowing the operator to shift between high and low ranges while the tractor is in motion, providing greater flexibility under varying load conditions.

Hydraulics and PTO

Equipped with an open-center hydraulic system, the tractor delivers a pump flow of 12 gallons per minute (45.4 lpm) with a system capacity of 22.5 gallons (85.2 L). The independent rear PTO offers two speeds, 540 and 1000 RPM, both engaged at 2100 engine RPM, facilitating the operation of a wide range of implements.

Operator Environment and Mechanical Features

The tractor features a standard cab equipped with air conditioning, though open-station models with a four-post ROPS were also available. Mechanical control is assisted by power steering and hydraulic disc brakes. Final drives utilize a bull gear configuration, and an optional mechanical rear differential lock is available to enhance traction in difficult soil conditions.

Conclusion

"With its 144-horsepower rating and flexible transmission options, the International Harvester 1086 is well-suited for row-crop farming and heavy-duty field work. Its combination of hydraulic capacity and operator comfort features established it as a durable and versatile workhorse for mid-to-large scale agricultural operations of its era."

Videos

Introduction

Production Information of International Harvester, 1086

The production information of the tractor (1086) includes details about its manufacturing.

Row-Crop tractor

Built in Rock Island, Illinois, USA


Manufacturer	International Harvester
Original price	$35,700 (1981)
Total built	47,420

Dimension and Tires Information of International Harvester, 1086

This section sums up the dimension and tires information of the tractor.


	126 inches (Hi-Clear) [320 cm]
Wheelbase	105 inches (wide-tread front) [266 cm]
Length	168 inches (2WD) [426 cm]
	106 inches (Hi-Clear) [269 cm]
	101 inches (tricycle front) [256 cm]
Width	102 inches [259 cm]
	165 inches (4WD) [419 cm]
	99 inches (4WD) [251 cm]
	26 inches (Hi-Clear) [66 cm]
Ground clearance	13 inches [33 cm]
Height (cab)	115 inches [292 cm]
	98 inches (Hi-Clear) [248 cm]
	169 inches (Hi-Clear) [429 cm]


Ag front	10.00-16 (2WD)
	13.6-24 (4WD)
Ag rear	18.4-38

Engine Specifications of International Harvester, 1086

Get the specifications for the engine and if different options are available.

Liquid-cooled

6-cylinder


Air cleaner	Dual dry element
Displacement	414 ci [6.8 L]
Oil capacity	20 qts [18.9 L]
Rated RPM	2400
Bore/Stroke	4.30x4.75 inches [109 x 121 mm]
Coolant capacity	25 qts [23.7 L]

Transmission Information of International Harvester, 1086Y

Discover all variants of transmission available for this tractor model.

Transmission variants 1

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.


Type	Gear
Gears	8 forward and 4 reverse
Oil capacity	90 qts [85.2 L]

Transmission variants 2

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.


Transmission	Torque Amplifier
Oil type	IH Hy-Tran/B-6
Oil capacity	90 qts [85.2 L]
Type	Two-speed power shift
	IH Hy-Tran/B-6
Gears	16 forward and 8 reverse

8-speed gear

16-speed two-speed power shift

Mechanical Specs of International Harvester, 1086Y

This section summarizes all mechanical information such as the brake system and other specifications.

Two- or four-wheel drive

Hydraulic disc brakes

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


Steering	Power assist
Final drives	Bull gear
Differential lock	Mechanical rear OptOptional

Power Information of International Harvester, 1086Y

Discover the power specifications and options available for this tractor model but also PTO (Power Take-off) information.


Rear PTO	Independent
	1000@2100
Rear PTO Type	540/1000 (1.375)
Engine RPM	540@2100

Hydraulics Specifications of International Harvester, 1086

Hydraulic system type, pressure, pump flow and valves.


Type	Open center
Pump flow	12 gpm [45.4 lpm]
Valves	2
	Closed center *Optional after late 1980.
Capacity	22.5 gal [85.2 L]

Three-Point Hitch of International Harvester, 1086

Hitch category and rear/front lift capacity.


Rear Type	III

Electrical System of International Harvester, 1086

Battery voltage, charging system and ground.


Battery volts	12
Ground	Negative
Batteries	2
	61 (with cab)
Charging system	Alternator
Battery CCA	470
Charging amps	42

Frequently asked questions

How much horsepower does the International Harvester 1086 have?

The International Harvester 1086 delivers 144 hp[P] HP.

What years was the International Harvester 1086 produced?

The International Harvester 1086 was produced in 1976-1981.

What engine does the International Harvester 1086 have?

The International Harvester 1086 is powered by a 6-cylinder engine.

What transmission does the International Harvester 1086 use?

The International Harvester 1086 uses a Gear transmission.

Is the International Harvester 1086 4WD?

The International Harvester 1086 is available in 2WD/4WD.

More International Harvester models

1456144 HP · 1969 - 1971 4100144 HP · 1965 - 1968 1455145 HP · 1979 - 1981 1455 XL145 HP · 1981 - 1985 3388145 HP · 1978 - 1981 1466147 HP · 1971 - 1976 1468147 HP · 1971 - 1974 1066140 HP · 1971 - 1976

View all 252 International Harvester models →

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