Compare/International Harvester 684 vs International Harvester TD-8 82 Series

International Harvester 684 vs International Harvester TD-8 82 Series

Verdict: International Harvester 684 vs International Harvester TD-8 82 Series

The International Harvester 684 and the International Harvester TD-8 82 Series are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 63 hp. International Harvester TD-8 82 Series is the lighter machine (5,216 kg vs 5,620 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester 684 is the newer design (1977 vs 1966). 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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Acreage600 acBudgetMain crop / use

Fit & specs

International Harvester

Fit score

Best match

Clear

International Harvester

Fit score

Best match

Clear

Rated power

63 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

International HarvesterReference

The optional Torque Amplifier (TA) provides a clutchless on-the-move shift from direct drive (DD) to a lower TA speed.Reference

liquid-cooledReference

Total built

—

2432Reference

Drive

—

crawlerReference

Final drives

—

planetaryReference

Engine

51.5 kWReference

—

Drawbar (claimed)

41.7 kWReference

38.9 kWReference

Plows

4Reference

—

Drawbar (tested)

40.7 kWReference

—

Displacement

3.9 LReference

4.6 LReference

Bore/Stroke

98 x 129 mmReference

105 x 133 mmReference

Power

51.5 kWReference

—

Air cleaner

dryReference

—

Rated RPM

2400Reference

1600Reference

Starter volts

12Reference

Oil capacity

34.1 LReference

13.6 LReference

Coolant capacity

13.6 LReference

24.4 LReference

Power at rated engine speed

46.6 kWReference

—

Max power

40.7 kWReference

—

Fuel tank

—

115.8 LReference

Engine (gross)

—

46.6 kWReference

Engine (net)

—

43.3 kWReference

Belt (claimed)

—

41.5 kWReference

Power (net)

—

43.3 kWReference

Power (gross)

—

46.6 kWReference

Torque

—

298.3 NmReference

Torque RPM

—

1200Reference

Starter

—

electricReference

Transmission

Gears

16 forward and 8 reverseReference

5 forward and 1 reverseReference

Transmission

Torque AmplifierReference

—

PTO & Hydraulics

PTO (claimed)

46.6 kWReference

—

PTO (tested)

46.6 kWReference

—

Hydraulic system

34.1 LReference

—

Type

two-speed power shiftReference

gearReference

Capacity

34.1 LReference

—

Valves

1 or 2Reference

—

Pump flow

58.3 lpmReference

—

Rear Type

IIReference

—

Control

position and draft controlReference

—

Rear lift

1632 kgReference

—

Rear PTO

independentReference

—

Clutch

dry discReference

330mm dry discReference

Rear PTO Type

540Reference

—

Power at rated PTO speed

43.8 kWReference

—

Capacities

Fuel

75.7 LReference

—

Dimensions

Utility Wheelbase

223 cmReference

—

Row-crop Wheelbase

214 cmReference

—

4WD Wheelbase

216 cmReference

—

Low-profile Wheelbase

212 cmReference

—

Weight

5620 to 6765 poundsReference

5216 kgReference

Front tire

7.50-16Reference

—

Rear tire

16.9-30Reference

—

Ag front

7.50-16Reference

—

Ag rear

16.9-30Reference

—

Utility Length

360 cmReference

—

Row-crop Length

353 cmReference

—

4WD Length

373 cmReference

—

Low-profile Length

360 cmReference

—

Utility Width

187 cmReference

—

Row-crop Width

190 cmReference

—

4WD Width

187 cmReference

—

Low-profile Width

199 cmReference

—

Utility Ground clearance

45 cmReference

—

Row-crop Ground clearance

45 cmReference

—

4WD Ground clearance

45 cmReference

—

Low-profile Ground clearance

27 cmReference

—

Bar rear axle

69 mmReference

—

Utility Shipping

2594 kgReference

—

Row-crop Shipping

2707 kgReference

—

4WD Shipping

3068 kgReference

—

Low-profile Shipping

2549 kgReference

—

Ballasted

4381 kgReference

—

Utility Steering wheel

160 cmReference

—

Row-crop Steering wheel

160 cmReference

—

4WD Steering wheel

160 cmReference

—

Low-profile Steering wheel

143 cmReference

—

Length

—

294 cmReference

Height

—

171 cmReference

Operating weight

—

5216 kgReference

Ground clearance

—

21 cmReference

Gauge

—

137 cmReference

684 Serial Number Location

684 Serial Numbers

1978

501Reference

—

1979

1687Reference

—

1980

3533Reference

—

1981

6037Reference

—

1982

8001Reference

—

1983

8512Reference

—

1984

9352Reference

—

Electrical

Ground

negativeReference

—

Charging amps

45Reference

—

Battery volts

12Reference

—

Charging system

—

generatorReference

International Harvester 684 Height

ROPS

254 cmReference

—

Test results

Fuel use

15.5 l/hourReference

—

Max pull

3110 kgReference

—

Speeds

TD-8 Serial Numbers

1966

—

3794Reference

1967

—

4127Reference

1968

—

4404Reference

1969

—

4752Reference

1970

—

5011Reference

1971

—

5290Reference

1972

—

5386Reference

1973

—

5540Reference

1974

—

5850Reference

1975

—

6130Reference

Final

—

6226Reference

International Harvester TD-8 Tracks

Width

—

172 cmReference

Length on ground

—

161 cmReference

Area on ground

—

1.1 m²Reference

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.