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Years in Production / 1976–1981

International Harvester

Hydro 186

Explore the specifications, hardware, and original references for the International Harvester Hydro 186.

Generic tractor; no model photo available
No photo

115hp

Engine estimate · from PTO

MFWD Optional

Drive

1976–1981

Production years

International Harvester

Manufacturer

Hydro 186 / 01

At a glance

Overview

1976 - 1981

86 Series

Row-Crop tractor

Alternative Additional Value
IH Hy-Tran/B-6

Production

Row-Crop tractor

Built in Rock Island, Illinois, USA

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

Mechanical

Two- or four-wheel drive

Hydraulic disc brakes

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

Final Drives
bull gear
Steering
power assist

Capacity

Fuel
50 gal189.2 L
Fuel
22 gal (auxiliary)83.3 L
Hydraulic System
28.5 gal107.9 L

Hydraulics

Type
open center
Type
closed center *Optional after late 1980.
Capacity
28.5 gal107.9 L
Valves
2
Pump Flow
12 gpm45.4 lpm

Hitch

Rear Type
II
Rear Lift At24610mm
6660 lbs3020 kg

Pto

Rear Pto
independent
Rear Type
540/1000 (1.375)
Engine Rpm
540@2100
Engine Rpm
1000@2100

Electrical

Ground
negative
Charging System
alternator
Charging Amps
42
Charging Amps
61 (with cab)
Batteries
2
Battery Cca
470
Battery Volts
12

Hydro 186 / 02

Under the hood

Engine Detail

International Harvester D436

diesel

6-cylinder

liquid-cooled

Displacement
436 ci7.1 L
Bore Stroke
4.30x5.00 inches109 x 127 mm
Air Cleaner
dual dry element
Rated Rpm
2400
Coolant Capacity
26 qts24.6 L
Fuel Type
diesel
Cylinders
6
Cooling
liquid-cooled
Oil Capacity
14 qts13.2 L

Engine Options

International Harvester 7.1L 6-cyl diesel

Hydro 186 / 03

Gears & controls

Speeds

18.4-34 rear tires.

Hydro 186 / 04

Size. Stance. Footprint.

Dimensions

Length
169 in429 cm
Width
98 in248 cm
Height (cab)
125 in317 cm
Wheelbase
106 in269 cm
Ground clearance
26 in66 cm

Dimensions And Tires

Wheelbase
105 inches266 cm
Wheelbase
101 inches (tricycle front)256 cm
Wheelbase
99 inches (4WD)251 cm
Wheelbase
106 inches (Hi-Clear)269 cm
Weight
11500 to 13135 pounds
Front Tire
10.00-16
Rear Tire
18.4-34

Tires And Tracks

Front Ag
10.00-16
Rear Ag
18.4-34

See it in action

Videos

Watch International Harvester Hydro 186 videos from their original YouTube creators.

What Kind of Junk Did I Buy Now! Two IH 1086s and a Hydro 186 Plus So Much More!

Video by Territorial Trading

Watch on YouTube ↗

Hydro 186 / 06

Tests (NTTL)

Nebraska Tractor Test 1257

Diesel hydrostatic 2WDSeptember 22 - October 3, 1977

PTO performance

Drawbar performance

Pull at 9.6 KPH

Pull at 3.9 KPH

Id
1257
Power At Rated Engine Speed
105.02 hp78.3 kW
Fuel Use
8.1 gal/hour30.7 l/hour
Fuel Use
7.3 gal/hour27.6 l/hour
Power At Rated Pto Speed
100.31 hp74.8 kW
Max Power
79.83 hp59.5 kW
Max Pull
11312 lbs5131 kg