International Harvester 1086

The International Harvester 1086 is a robust and versatile row-crop tractor produced between 1976 and 1981 in Rock Island, Illinois, USA. With a production total of 47,420 units, it was a popular choice among farmers during its time. This tractor model came with various options, including a high-clearance variant, making it suitable for different agricultural needs. It featured a turbocharged diesel engine for reliable power, and its transmission options included both gear and two-speed power shift configurations. The 1086 was known for its durability, power, and versatility, making it a valuable asset on farms.

International Harvester 1086 Specifications
ModelInternational Harvester 1086
Years Produced1976 – 1981
Series86 Series
TypeRow-Crop tractor
ManufacturerInternational Harvester
Built inRock Island, Illinois, USA
Total Built47,420
Original Price$35,700 (1981)
ModelInternational Harvester DT-414
TypeTurbocharged diesel
Displacement414 ci (6.8 L)
Bore/Stroke4.30×4.75 inches (109 x 121 mm)
Air CleanerDual dry element
Rated RPM2400
Coolant Capacity25 qts (23.7 L)
Transmission Options
8-speed gear8 forward and 4 reverse gears (with three ranges
16-speed two-speed power shift16 forward and 8 reverse gears (with three ranges
Drawbar (tested)113.04 hp (84.3 kW)
PTO (tested)131.41 hp (98.0 kW)
Two- or four-wheel drive
Final drivesBull gear
Differential lockMechanical rear (Optional)
SteeringPower assist
BrakesHydraulic disc brakes
CabStandard with air-conditioning. Open operator station and four-post ROPS available.
Fuel63 gal (main) and 22 gal (auxiliary)
Hydraulic System22.5 gal
Hydraulics TypeOpen center
Tractor HitchRear Type 3
Power Take-off (PTO)
Rear PTOIndependent
Rear PTO Type540/1000
Engine RPM540@2100 and 1000@2100
Serial Numbers
Charging SystemAlternator
Charging Amps42 (61 with cab)
Battery CCA470
Battery Volts12
Ag Front10.00-16 (2WD), 13.6-24 (4WD)
Ag Rear18.4-38
Wheelbase105 inches (wide-tread front), 101 inches (tricycle front), 99 inches (4WD), 106 inches (Hi-Clear)
Length168 inches (2WD), 165 inches (4WD), 169 inches (Hi-Clear)
Width102 inches, 98 inches (Hi-Clear)
Height (Cab)115 inches, 126 inches (Hi-Clear)
Ground Clearance13 inches, 26 inches (Hi-Clear)
Shipping12,300 lbs, 13,030 lbs (Hi-Clear)
Operating12,715 lbs (2WD)
The International Harvester 1086 stands out among row-crop tractors for several reasons. Its uniqueness and special features make it a preferred choice for many farmers:

International Harvester 1086 Advantages:
Power and Performance: The 1086 boasts a turbocharged diesel engine that delivers substantial power, making it suitable for various farming tasks, from plowing to pulling heavy equipment.
Transmission Options: It offers flexibility with both gear and two-speed power shift transmissions, allowing operators to choose the one that suits their needs and preferences.
Durability: Built by International Harvester, a renowned brand for producing reliable farm equipment, the 1086 is known for its durability and robust construction.
High-Clearance Variant: The availability of a high-clearance version makes it ideal for row-crop farming, allowing farmers to navigate tall crops without damaging them.
Comfortable Cab: Equipped with a cab that includes air-conditioning, the 1086 offers a comfortable and climate-controlled working environment for operators.

International Harvester 1086 Historical Value:
The International Harvester 1086 holds historical significance as it was part of the 86 Series, which marked a transition from older tractor models to more modern designs. Its production spanned from the mid-1970s to early 1980s, making it a symbol of that era’s agricultural technology.

Comparison with Similar Models:
When compared to other tractors of its time, the 1086 often stood out for its power and versatility. Its turbocharged engine gave it an edge in terms of performance. The availability of transmission options made it adaptable to various tasks, and the high-clearance variant made it suitable for specialized row-crop farming.

International Harvester 1086 Disadvantages:
Fuel Consumption: The powerful engine, while advantageous in terms of performance, may consume more fuel compared to smaller tractors.

In summary, the International Harvester 1086 is a historically significant and versatile row-crop tractor known for its power, durability, and various configuration options. Its unique features and brand reputation have made it a valuable asset for many farmers, especially those involved in row-crop agriculture. However, it may not be the most fuel-efficient option, and its size could be a limitation in certain farming environments.

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