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Tractor · 1976Unverified

International Harvester Hydro 86

Name: International Harvester Hydro 86
Brand: International Harvester

International Harvester Hydro 86 — 86 Series · 70 hp. Reference specifications; pending source verification.

The International Harvester Hydro 86 is a tractor with a rated power of 70 hp, a mid-range figure for its class. It was manufactured from 1976 to 1980. The tractor features a 6-cylinder diesel liquid-cooled engine and is equipped with two-wheel drive and a hydrostatic transmission. Its operating weight is 3719 kg.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

70 hp

Max power

40.2 kW

Weight

3719 kg

Catalogue coverage

Variants represented

Richest spec table

80 rows

Recorded power

70 hp

Recorded weight

3719 kg

Transmissions

hydrostatic

Production years

1976-1980

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

ManufacturerInternational HarvesterReference

Row-Crop tractorReference

Original price was $23,400 in 1980Reference

Two-wheel driveReference

Power steeringReference

Differential dry disc brakesReference

Open operator station.Reference

Engine

International Harvester 5.1L 6-cyl dieselReference

International Harvester 4.8L 6-cyl gasolineReference

Drawbar (claimed)39.8 kWReference

Drawbar (tested)40.2 kWReference

International Harvester D-312Reference

dieselReference

6-cylinderReference

liquid-cooledReference

Displacement5.1 LReference

Bore/Stroke98 x 112 mmReference

Air cleanerdual dry element with unloaderReference

Compression17:1Reference

Rated RPM2400Reference

Starter volts12Reference

International HarvesterReference

gasolineReference

Displacement4.8 LReference

Bore/Stroke95 x 112 mmReference

Air cleanerdual stage dry with dust unloaderReference

Compression7.5:1Reference

International Harvester D-310Reference

The D-310 diesel was used on the Hydro 86, replacing the 312, during production in 1979.Reference

Displacement5.1 LReference

Bore/Stroke98 x 111 mmReference

Air cleanerdryReference

Compression15.1:1Reference

Power at rated engine speed51.9 kWReference

Max power40.2 kWReference

Power at rated engine speed51.8 kWReference

Max power39.6 kWReference

Power at rated engine speed52.9 kWReference

Max power39.1 kWReference

Transmission

hydrostaticReference

TypehydrostaticReference

Gearsvariable forward and reverse (2-range)Reference

PTO & Hydraulics

PTO (claimed)51.8 kWReference

PTO (tested)52.9 kWReference

Typeopen centerReference

Valves1Reference

Pump flow45.4 lpmReference

Rear TypeIIReference

Rear PTOindependentReference

Rear PTO Type540 (1.375)Reference

Power at rated PTO speed47.8 kWReference

Power at rated PTO speed48.8 kWReference

Power at rated PTO speed49.7 kWReference

Dimensions

Weight3719 kgReference

Front tire7.50-16Reference

Rear tire15.5-38Reference

Ag front7.50-16Reference

Ag rear15.5-38Reference

Operating weight3719 kgReference

Ballasted weight4731 kgReference

Hydro 86 Serial Number Location

Serial number plate on the left side of the tractor's clutch housing.Reference

Test results

NTTL 1154: gasoline hydrostatic 2WDReference

NTTL 1155: 312 diesel hydrostatic 2WDReference

NTTL 1337: 310 diesel hydrostatic 2WDReference

Gasoline hydrostatic 2WDNovember 14 - December 3, 1973Link: Nebraska Tractor Test 1154 fileReference

PTO performanceReference

Fuel use26.1 l/hourReference

Fuel use22.0 l/hourReference

Drawbar performanceReference

Fuel use29.1 l/hourReference

Max pull3822 kgReference

312 diesel hydrostatic 2WDNovember 14 - December 3, 1973Link: Nebraska Tractor Test 1155 fileReference

Fuel use21.2 l/hourReference

Fuel use20.1 l/hourReference

Max pull3769 kgReference

310 diesel hydrostatic 2WDMarch 27 - September 17, 1980Link: Nebraska Tractor Test 1337 fileReference

Fuel use17.8 l/hourReference

Pull at 6.5 KPHReference

Max pull3998 kgReference

Pull at 3.3 KPHReference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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