Compare/International Harvester 634 vs International Harvester 674

International Harvester 634 vs International Harvester 674

Verdict: International Harvester 634 vs International Harvester 674

The International Harvester 634 and the International Harvester 674 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 59 hp. International Harvester 674 is the lighter machine (2,562 kg vs 6,546 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester 634 holds more fuel (77.2 L vs 75.7 L) for longer stints between fills. International Harvester 674 is the newer design (1973 vs 1968). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

International Harvester

Fit score

Best match

Clear

International Harvester

Fit score

Best match

Clear

Rated power

59 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

International HarvesterReference

liquid-cooledReference

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

Total built

3,848Reference

—

Drive

4x4 4WDReference

—

2WD Steering

manualReference

—

4WD Steering

powerReference

—

Factories

—

Louisville, Kentucky, USAReference

Engine

Fuel tank

77.2 LReference

75.7 LReference

Engine

49.2 kWReference

—

Displacement

4.6 LReference

3.3 LReference

Bore/Stroke

105 x 133 mmReference

97 x 112 mmReference

Power

49.2 kWReference

—

Rated RPM

1600Reference

2400Reference

Torque

305.1 NmReference

—

Torque RPM

1000Reference

—

Starter volts

12Reference

Drawbar (tested)

—

40.6 kWReference

Air cleaner

—

dual stage dryReference

Compression

—

7.33:1Reference

Power at rated engine speed

—

45.9 kWReference

Max power

—

40.6 kWReference

Transmission

Gears

8 forward and 2 reverseReference

8 forward and 4 reverseReference

Clutch

330mm dry discReference

dry discReference

PTO & Hydraulics

PTO (claimed)

44.2 kWReference

—

Pressure

172.4 barReference

—

Pump flow

39.4 lpmReference

49.2 lpmReference

Steering flow

18.2 lpmReference

—

Steering press.

103.4 barReference

—

Rear Type

IIReference

Control

position and draft controlReference

Rear lift

1524 kgReference

1800 kgReference

Rear PTO

independentReference

Rear PTO Type

540 (1.375)Reference

Engine RPM

540@1458Reference

—

PTO (tested)

—

45.9 kWReference

Type

—

gearReference

Power at rated PTO speed

—

43.8 kWReference

Dimensions

2WD Wheelbase

220 cmReference

—

4WD Wheelbase

220 cmReference

—

AWD Wheelbase

190 cmReference

—

Weight

6546 to 9574 poundsReference

2562 kgReference

Front tire

7.50-16Reference

2WD Rear tire

11-38Reference

—

2WD Standard tires (ag)

Front: 7.50-16. Rear: 11-38Reference

—

4WD Standard tires (ag)

Front: 10-24. Rear: 12-38Reference

—

AWD Standard tires (ag)

Front: 14-30. Rear: 14-30Reference

—

2WD Length

350 cmReference

—

4WD Length

353 cmReference

—

AWD Length

381 cmReference

—

Width

166 cmReference

177 cmReference

Height (cab)

243 cmReference

236 cmReference

2WD Front tread

132 to 154 cmReference

—

4WD Front tread

134 to 167 cmReference

—

AWD Front tread

152 to 203 cmReference

—

2WD Rear tread

142 to 182 cmReference

—

4WD Rear tread

142 to 182 cmReference

—

AWD Rear tread

152 to 203 cmReference

—

2WD Operating

2969 kgReference

—

4WD Operating

3489 kgReference

—

AWD Operating

4342 kgReference

—

Wheelbase

—

214 cmReference

Rear tire

—

16.9-30Reference

Ag front

—

7.50-16Reference

Ag rear

—

16.9-30Reference

Length

—

332 cmReference

Height (steering wheel)

—

157 cmReference

Operating weight

—

2562 kgReference

Ballasted weight

—

3941 kgReference

Clearance (rear axle)

—

58 cmReference

Bar rear axle

—

69 mmReference

Front tread

—

137 to 203 cmReference

Rear tread

—

142 to 193 cmReference

Electrical

Charging system

generatorReference

—

Battery volts

12Reference

Battery AH

95Reference

—

Ground

—

negativeReference

674 Serial Number Location

674 Serial Numbers

1973

—

100001Reference

1974

—

101862Reference

1975

—

103172Reference

1976

—

105946Reference

1977

—

107555Reference

Test results

Fuel use

—

15.1 l/hourReference

Max pull

—

3099 kgReference

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.