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Tractor · 1974Unverified

International Harvester 1568

Name: International Harvester 1568
Brand: International Harvester

International Harvester 1568 — 66 Series · 172 hp. Reference specifications; pending source verification.

The International Harvester 1568 is a high-powered tractor with a rated output of 172 hp. It was manufactured from 1974 to 1976. The tractor is equipped with an 8-cylinder diesel liquid-cooled engine and features a two-wheel drive system with a powershift transmission. Its listed weight is 5878 kg and is designed for use on land areas ranging from 600 to 1,500 acres.

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

Rated power

172 hp

Max power

97.1 kW

Weight

5878 kg

Catalogue coverage

Variants represented

Richest spec table

75 rows

Recorded power

172 hp

Recorded weight

5878 kg

Transmissions

12-speed two-speed power shift

Production years

1974-1976

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

Built in Rock Island, Illinois, USAReference

Total built862Reference

Original price was $26,980 in 1976Reference

The 1568 was a 1566 with a International V8 truck engine.Reference

Two-wheel driveReference

Final drivesplanetaryReference

Power steeringReference

Hydraulic wet disc brakesReference

Cab standard with air-conditioning.Reference

Engine

International 9.0L 8-cyl dieselReference

Fuel tank159.0 LReference

Engine (gross)128.3 kWReference

Drawbar (tested)97.1 kWReference

International DV-550Reference

dieselReference

8-cylinderReference

liquid-cooled V-8Reference

Displacement9.0 LReference

Bore/Stroke114 x 110 mmReference

Power (gross)128.3 kWReference

Air cleanertwo-stage dry with unloaderReference

Compression16.6:1Reference

Rated RPM2600Reference

Idle RPM900-2600Reference

Starter volts12Reference

Oil capacity15.1 LReference

Coolant capacity28.4 LReference

Power at rated engine speed112.4 kWReference

Max power97.1 kWReference

Transmission

12-speed two-speed power shiftReference

TransmissionTorque AmplifierReference

Typetwo-speed power shiftReference

Gears12 forward and 6 reverseReference

PTO & Hydraulics

PTO (claimed)111.9 kWReference

PTO (tested)112.4 kWReference

Typeopen centerReference

Rear valves1 or 2Reference

Front valves2Reference

Pump flow45.4 lpmReference

Total flow79.5 lpmReference

Rear TypeIII/IIReference

Controldraft controlReference

Rear PTOindependentReference

Rear PTO Type1000 (1.375)Reference

Engine RPM1000@2300Reference

Power at rated PTO speed110.2 kWReference

Dimensions

Wheelbase266 cmReference

Weight5878 kgReference

Front tire11L-15Reference

Rear tire20.8-38Reference

Ag front11L-15Reference

Ag rear20.8-38Reference

Length426 cmReference

Height (cab)297 cmReference

Height (exhaust)325 cmReference

Clearance (drawbar)43 cmReference

Front tread132 to 218 cmReference

Front tread142 to 203 cmReference

Rear tread167 to 304 cmReference

1568 Serial Numbers

19747201Reference

19757821Reference

FAQ: How to read a serial number table.Reference

Links

IH V-8 Tractor Engines: article on the V8s from TractorShop.comReference

Electrical

Charging systemalternatorReference

Battery volts6Reference

Test results

Diesel 12-speed 2WDMay 3 - 15, 1975Link: Nebraska Tractor Test 1175 fileReference

PTO performanceReference

Fuel use38.2 l/hourReference

Fuel use37.5 l/hourReference

Drawbar performanceReference

Fuel use49.2 l/hourReference

Gear 1-Hi-TA used for power test.Reference

Speeds

With 20.8-38 rear tires.Reference

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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