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Tractor · 1973Unverified

International Harvester 674

Name: International Harvester 674
Brand: International Harvester

International Harvester 674 — Utility tractor · 59 hp. Reference specifications; pending source verification.

The International Harvester 674 is a tractor with an engine rating of approximately 59 horsepower, positioning it at the lower end of its class. This model was manufactured from 1973 to 1977. It features a 4-cylinder diesel liquid-cooled engine and two-wheel drive, paired with an 8-speed gearbox. The tractor's operating weight is listed as 2562 kg, and it is suitable for operations covering up to 200 acres.

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

Rated power

59 hp

Max power

38.8 kW

Weight

2562 kg

Catalogue coverage

Variants represented

Richest spec table

87 rows

Recorded power

59 hp

Recorded weight

2562 kg

Transmissions

8-speed gear

Production years

1973-1977

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

Utility tractorReference

FactoriesDoncaster, EnglandReference

FactoriesLouisville, Kentucky, USAReference

Original price was $11,300 in 1978Reference

Two-wheel driveReference

Power steeringReference

Hydraulic wet disc brakesReference

Open operator station. Four-post ROPS and cab available.Reference

Engine

International Harvester 3.9L 4-cyl dieselReference

International Harvester 3.3L 4-cyl gasolineReference

Fuel tank75.7 LReference

Drawbar (tested)40.6 kWReference

International Harvester D239Reference

dieselReference

4-cylinderReference

liquid-cooledReference

Displacement3.9 LReference

Bore/Stroke98 x 129 mmReference

Air cleanerdual stage dryReference

Compression16:1Reference

Rated RPM2400Reference

Starter volts12Reference

International Harvester C200Reference

gasolineReference

Displacement3.3 LReference

Bore/Stroke97 x 112 mmReference

Compression7.33:1Reference

Power at rated engine speed43.6 kWReference

Max power38.8 kWReference

Power at rated engine speed45.9 kWReference

Max power40.6 kWReference

Transmission

8-speed gearReference

TypegearReference

Gears8 forward and 4 reverseReference

Clutchdry discReference

PTO & Hydraulics

PTO (tested)45.9 kWReference

Typeopen centerReference

Pump flow49.2 lpmReference

Rear TypeIIReference

Controlposition and draft controlReference

Rear lift1800 kgReference

Rear PTOindependentReference

Rear PTO Type540 (1.375)Reference

Power at rated PTO speed41.8 kWReference

Power at rated PTO speed43.8 kWReference

Dimensions

Wheelbase214 cmReference

Weight2562 kgReference

Front tire7.50-16Reference

Rear tire16.9-30Reference

Ag front7.50-16Reference

Ag rear16.9-30Reference

Length332 cmReference

Width177 cmReference

Height (steering wheel)157 cmReference

Height (cab)236 cmReference

Operating weight2562 kgReference

Ballasted weight3941 kgReference

Clearance (rear axle)58 cmReference

Bar rear axle69 mmReference

Front tread137 to 203 cmReference

Rear tread142 to 193 cmReference

674 Serial Number Location

Serial number plate on the left side of the transmission housing.Reference

674 Serial Numbers

1973100001Reference

1974101862Reference

1975103172Reference

1976105946Reference

1977107555Reference

FAQ: How to read a serial number table.Reference

Electrical

GroundnegativeReference

Battery volts12Reference

Test results

NTTL 1128: gasoline 8-speed 2WDReference

NTTL 1129: diesel 8-speed 2WDReference

Gasoline 8-speed 2WDApril 26 - May 17, 1973Link: Nebraska Tractor Test 1128 fileReference

PTO performanceReference

Fuel use21.6 l/hourReference

Fuel use19.7 l/hourReference

Drawbar performanceReference

Fuel use20.8 l/hourReference

Gear 3L used for power test.Reference

Max pull2986 kgReference

Gear 2L used for pull test.Reference

Diesel 8-speed 2WDApril 28 - May 17, 1973Link: Nebraska Tractor Test 1129 fileReference

Fuel use15.5 l/hourReference

Fuel use14.8 l/hourReference

Fuel use15.1 l/hourReference

Max pull3099 kgReference

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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