International Harvester Hydro 186

Name: International Harvester Hydro 186
Brand: International Harvester

Power

115 hp[P] hp

Production

1976-1981

Engine

6-cylinder

Drive

2WD/4WD

100–140 HP 1970s 1980s

From the same series:

986

1086

Introduction

International Harvester Hydro 186 Row-Crop Tractor

The International Harvester Hydro 186 is a row-crop tractor manufactured in Rock Island, Illinois, between 1976 and 1981. It belongs to the manufacturer's heavy-duty series, sharing design characteristics with models such as the 986 and 1086, and was positioned as a versatile machine for mid-to-large scale agricultural operations.

Engine and Powertrain

The tractor is powered by a 7.1-liter (436 ci) six-cylinder liquid-cooled engine. It features a bore and stroke of 109 x 127 mm and is rated at 2400 RPM, delivering 115 horsepower. The engine intake is protected by a dual dry element air cleaner, and the system maintains an oil capacity of 13.2 liters with a coolant capacity of 24.6 liters.

Transmission and Mechanical Features

The Hydro 186 is available in both two-wheel and four-wheel drive configurations. Mechanical handling is assisted by power steering and hydraulic disc brakes for increased operator control. Final drives utilize a bull gear design. The operator environment includes a standard cab equipped with air conditioning, though an open station with a four-post ROPS was also offered.

Hydraulics and Hitch

The hydraulic system features an open-center design with a pump flow of 45.4 liters per minute (12 gpm) and a total reservoir capacity of 107.9 liters. It is equipped with two valves for implement control. The rear hitch is a Category II type, capable of a lift capacity of 3020 kg (6660 lbs) measured at 24 inches behind the lift point.

Power Take-Off (PTO)

The tractor is equipped with an independent rear PTO capable of operating at 540 or 1000 RPM. Both speeds are achieved at an engine speed of 2100 RPM. The PTO shaft size is standard 1.375 inches.

Conclusion

"The International Harvester Hydro 186 is a robust row-crop tractor designed for sustained agricultural productivity. Its combination of a high-displacement six-cylinder engine, versatile hydraulic capacity, and dual-speed independent PTO makes it suitable for a wide range of pulling and implement-driven tasks."

Introduction

Production Information of International Harvester, Hydro 186

The production information of the tractor (Hydro 186) includes details about its manufacturing.

Row-Crop tractor

Built in Rock Island, Illinois, USA


Manufacturer	International Harvester
Original price	$33,900 (1981)

Dimension and Tires Information of International Harvester, Hydro 186

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


	125 inches (Hi-Clear) [317 cm]
Wheelbase	105 inches [266 cm]
Length	167 inches (2WD) [424 cm]
	106 inches (Hi-Clear) [269 cm]
	101 inches (tricycle front) [256 cm]
Width	102 inches [259 cm]
	163 inches (4WD) [414 cm]
	99 inches (4WD) [251 cm]
	26 inches (Hi-Clear) [66 cm]
Ground clearance	13 inches [33 cm]
Height (cab)	112 inches [284 cm]
	98 inches (Hi-Clear) [248 cm]
	169 inches (Hi-Clear) [429 cm]


Ag front	10.00-16
Ag rear	18.4-34

Engine Specifications of International Harvester, Hydro 186

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

Liquid-cooled

6-cylinder


Air cleaner	Dual dry element
Displacement	436 ci [7.1 L]
Oil capacity	14 qts [13.2 L]
Rated RPM	2400
Bore/Stroke	4.30x5.00 inches [109 x 127 mm]
Coolant capacity	26 qts [24.6 L]

Mechanical Specs of International Harvester, Hydro 186Y

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

Two- or four-wheel drive

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

Hydraulic disc brakes


Final drives	Bull gear
Steering	Power assist

Power Information of International Harvester, Hydro 186Y

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, Hydro 186

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	28.5 gal [107.9 L]

Three-Point Hitch of International Harvester, Hydro 186

Hitch category and rear/front lift capacity.


Rear Type	II
Rear lift (at 24"/610mm)	6660 lbs [3020 kg]

Electrical System of International Harvester, Hydro 186

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 Hydro 186 have?

The International Harvester Hydro 186 delivers 115 hp[P] HP.

What years was the International Harvester Hydro 186 produced?

The International Harvester Hydro 186 was produced in 1976-1981.

What engine does the International Harvester Hydro 186 have?

The International Harvester Hydro 186 is powered by a 6-cylinder engine.

Is the International Harvester Hydro 186 4WD?

The International Harvester Hydro 186 is available in 2WD/4WD.

More International Harvester models

Hydro 100115 HP · 1973 - 1976 986116 HP · 1976 - 1981 TD-18A112 HP · 1949 - 1958 856111 HP · 1967 - 1971 886B121 HP · 1981 - 1982 A-866121 HP · 1973 - 1978 A-886121 HP · 1978 - 1981 1046108 HP · 1971 - 1978

View all 252 International Harvester models →

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