International Harvester 1086
Power
144 hp[P] hp
Production
1976-1981
Engine
6-cylinder
Transmission
Gear
Drive
2WD/4WD
From the same series:
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
Production Information of International Harvester, 1086
- 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
| Wheelbase | 105 inches (wide-tread front) [266 cm] |
|---|---|
| Length | 168 inches (2WD) [426 cm] |
| Length(optional) | 106 inches (Hi-Clear) [269 cm] |
| Length(optional) | 101 inches (tricycle front) [256 cm] |
| Width | 102 inches [259 cm] |
| Width(optional) | 165 inches (4WD) [419 cm] |
| Width(optional) | 99 inches (4WD) [251 cm] |
| Width(optional) | 26 inches (Hi-Clear) [66 cm] |
| Ground clearance | 13 inches [33 cm] |
| Height (cab) | 115 inches [292 cm] |
| Height (cab)(optional) | 98 inches (Hi-Clear) [248 cm] |
| Height (cab)(optional) | 169 inches (Hi-Clear) [429 cm] |
| Ag front | 10.00-16 (2WD) |
|---|---|
| Ag front(optional) | 13.6-24 (4WD) |
| Ag rear | 18.4-38 |
Engine Specifications of International Harvester, 1086
- 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, 1086
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 |
| Type(optional) | 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, 1086
- 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(optional) | Mechanical rear |
Power Information of International Harvester, 1086
| Rear PTO | Independent |
|---|---|
| Rear PTO(optional) | 1000@2100 |
| Rear PTO Type | 540/1000 (1.375) |
| Engine RPM | 540@2100 |
Hydraulics Specifications of International Harvester, 1086
| Type | Open center |
|---|---|
| Pump flow | 12 gpm [45.4 lpm] |
| Valves | 2 |
| Valves(optional) | Closed center |
| Capacity | 22.5 gal [85.2 L] |
Optional after late 1980.
Three-Point Hitch of International Harvester, 1086
| Rear Type | III |
|---|
Electrical System of International Harvester, 1086
| Battery volts | 12 |
|---|---|
| Ground | Negative |
| Batteries | 2 |
| Batteries(optional) | 61 (with cab) |
| Charging system | Alternator |
| Battery CCA | 470 |
| Charging amps | 42 |
Where it sits
With 144 hp[P] HP, the International Harvester 1086 sits between 1066 (140 HP) and 5088 (150 HP) in International Harvester's range. Its power puts it in the 81th percentile of 1970s models in our database (1259 machines).
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.