Compare/International Harvester 685 vs International Harvester 743

International Harvester 685 vs International Harvester 743

Verdict: International Harvester 685 vs International Harvester 743

The International Harvester 685 and the International Harvester 743 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 72 hp. International Harvester 743 is the lighter machine (6,349 kg vs 6,703 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester 685 holds more fuel (112.0 L vs 106.0 L) for longer stints between fills. Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

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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

72 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

International HarvesterReference

Four gears (1-4) in two ranges (low/high) plus reverse range.Reference

Four gears in each of two ranges, plus reverse range.Reference

Differential lock

mechanical rearReference

Final drives

—

planetaryReference

Engine

Fuel tank

112.0 LReference

106.0 LReference

Engine (gross)

53.5 kWReference

54.0 kWReference

Engine (net)

51.5 kWReference

49.0 kWReference

Displacement

3.9 LReference

Bore/Stroke

98 x 129 mmReference

Power (net)

51.5 kWReference

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Power (gross)

53.5 kWReference

54.0 kWReference

Fuel system

direct injectionReference

—

Rated RPM

2300Reference

Torque

244.1 NmReference

—

Torque RPM

1600Reference

—

Starter

electricReference

Starter volts

12Reference

Rated Power (net)

—

49.0 kWReference

Transmission

Type

two-speed power shiftReference

partially synchronizedReference

Gears

16 forward and 8 reverseReference

Transmission

Torque AmplifierReference

SynchronReference

PTO & Hydraulics

PTO (claimed)

47.2 kWReference

46.0 kWReference

Pump flow

46.9 lpmReference

29.9 lpmReference

Rear Type

IIReference

Control

position and draft controlReference

—

Rear lift

2381 kgReference

3099 kgReference

Rear PTO

independentReference

—

Clutch

hydraulic wet discReference

280mm dry discReference

Rear PTO Type

540/1000Reference

540/1000 (1.375)Reference

Dimensions

Wheelbase

224 cmReference

223 cmReference

Weight

6703 to 7188 poundsReference

6349 to 7738 poundsReference

Front tire

10.00-16Reference

7.50-16Reference

Rear tire

16.9-34Reference

—

Ag front

12.4-24 (4WD)Reference

—

Ag rear

16.9-34Reference

—

Length

374 cmReference

378 cmReference

Height

264 cmReference

262 cmReference

2WD Weight

3040 kgReference

—

4WD Weight

3260 kgReference

—

2WD Rear tire

—

16.9/14-30Reference

2WD Standard tires (ag)

—

Front: 7.50-16. Rear: 16.9/14-30Reference

4WD Standard tires (ag)

—

Front: 9.5/9-24. Rear: 16.9/14-30Reference

2WD ROPS

—

2879 kgReference

2WD Cab

—

3114 kgReference

4WD ROPS

—

3270 kgReference

4WD Cab

—

3509 kgReference

685 Serial Numbers

Location:

Serial number plate on right front of tractor frame, above the front axle.Reference

—

Electrical

Ground

negativeReference

Battery volts

12Reference

Charging system

—

alternatorReference

Charging amps

—

33Reference

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.