• Rigid chassis
  • WhichTractor size: Standard-size
  • No lab test on file
  • 1977–1981

WhichTractor size, not the maker’s category

Derived by WhichTractor from a sourced three-point linkage. How we decide what a machine is

International Harvester 684 specs: hp, weight, years

INTERNATIONAL-HARVESTER D-239 four-cylinder diesel. The manufacturer claimed 68.0 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.

Engine power, claimed · gross or net not stated

68.0 hp

50.7 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “IHC 684”, claimed

This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.

Weight
5,181 lb
3-point lift
4,409 lb
Hyd. flow
9.9 gpm
Top speed
15.5 mph

International Harvester 684 specs: key facts

  • The International Harvester 684 was built from 1977 to 1981.

  • The International Harvester 684 has a claimed engine power (gross or net not stated) of 50.7 kW (68.0 hp); it has no measured PTO figure.

  • The International Harvester 684 was offered in two-wheel-drive and four-wheel-drive versions.

  • The International Harvester 684 has a INTERNATIONAL-HARVESTER D-239 engine, a 4-cylinder 3.91 L diesel unit.Source 1

  • The International Harvester 684 weighs 2,350 kg (5,181 lb) unladen.

  • The International Harvester 684 has an independent rear PTO running at 540/1000 rpm.

  • The three-point hitch of the International Harvester 684 lifts 2,000 kg (4,409 lb) at the lower-link ends.

  • The hydraulic pump of the International Harvester 684 delivers 37.5 L/min (9.9 gpm).

Source · Traktorenlexikon, “IHC 684”

How does the 684 compare with its class?

  • Limitation:

    Eight forward gears is low for its class — 33% below the median of 12 across the 365 machines within 10% of its power that hold this figure.

  • Worth knowing:

    An unladen mass of 2,350 kg is low for its class — 19% below the median of 2,900 kg across the 374 machines within 10% of its power that hold this figure.

Derived by WhichTractor from 374 comparable records. How we work this out

How much horsepower does a 684 have?

The only figure for the 684 is 68.0 hp (50.7 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.

Engine, claimed (gross/net not stated)
68.0 hp

Source · Traktorenlexikon, “IHC 684”

What engine is in a 684?

A 684 has an INTERNATIONAL-HARVESTER D-239, a 4-cylinder 3.91 L diesel engine.

Engine — 684 engine specifications
Make & modelINTERNATIONAL-HARVESTER D-239
Cylinders4, liquid-cooledSource 2
Displacement238.8 ci · 3.91 L
Max torque162 lb·ft · 220 N·mSource 2
Electrical system12 VSource 2

Source · Traktorenlexikon, “IHC 574”

How much will a 684 lift, and what is its hydraulic flow?

A 684 lifts 4,409 lb (2,000 kg) at the lower-link ends.

Hydraulics & PTO — 684 hydraulics and PTO specifications
Pump flow9.9 gpm · 37.5 L/min
Pressure2,698 psi · 186 bar
Lift at ends4,409 lb · 2,000 kg
Rear PTOIndependent, 540/1000 rpm

Source · Traktorenlexikon, “IHC 684”

What transmission does a 684 have?

Transmission specifications for the 684 are below.

Transmission — 684 transmission specifications
SteeringHydrostatic Danfoss steering with double-acting steering cylinder
Top speed15.5 mph · 25 km/h

Source · Traktorenlexikon, “IHC 684”

How much does a 684 weigh?

A 684 weighs 5,181 lb (2,350 kg) unladen.

Weights & dimensions — 684 weights and dimensions
Unladen weight5,181 lb · 2,350 kgtwo-wheel-drive version
Wheelbase88.0 in · 2,235 mmtwo-wheel-drive version
Length146.5 in · 3,720 mm
Width70.1 in · 1,780 mm
Height99.6 in · 2,530 mm
Ground clearance14.6 in · 370 mm
Front track52.0–72.0 in · 1,321–1,829 mmtwo-wheel-drive version
Rear track52.0–76.0 in · 1,321–1,930 mmtwo-wheel-drive version
Turning radius, braked10.9 ft · 3.33 mtwo-wheel-drive version

Source · Traktorenlexikon, “IHC 684”

What oil does a 684 take, and how much?

A 684 engine takes 9.0 qt (8.5 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.

684 fluid capacities, grades and service intervals
SystemCapacity
Engine oil9.0 qt · 8.5 LSource: Traktorenlexikon, “IHC 684” · single source, not independently verified
Transmission35.9 qt · 34.0 LSource: Traktorenlexikon, “IHC 684” · single source, not independently verified
Hydraulic36.0 qt · 34.1 LSource: Traktorenlexikon, “IHC 684” · single source, not independently verified
Cooling system12.0 qt · 11.4 LSource: Traktorenlexikon, “IHC 684” · single source, not independently verified

Always confirm against the operator’s manual for your machine before service.

Which tractors compare with a 684?

Within 10% of its 58.5 hp at the PTO as the maker claimed it, with no laboratory test on file, the same type, and first built within 15 years of it.

Common questions about the International Harvester 684

Is a 684 two-wheel drive or four-wheel drive?

The International Harvester 684 was offered in two-wheel-drive and four-wheel-drive versions.

What PTO does a 684 have?

A 684 has a independent 540/1000 rpm rear PTO.

Sources and how this page was built

Compiled from Traktorenlexikon, “IHC 574”; and Traktorenlexikon, “IHC 684”.

Sources checked

14 SEP 2026

Spotted an error?

Sources

Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution

  1. Traktorenlexikon: IHC 574 — CC BY-SA 4.0, WIKIBOOKS-TL-103893 · revision 1072224. Wikibooks contributors (Traktorenlexikon). Original document
  2. Traktorenlexikon: IHC 684 — CC BY-SA 4.0, WIKIBOOKS-TL-118624 · revision 1031583. Wikibooks contributors (Traktorenlexikon). Original document