• Rigid chassis
  • WhichTractor size: Standard-size
  • No lab test on file
  • 1976–1980
  • 1,850 built

It was ranked on an engine power figure whose source does not say gross or net. WhichTractor size, not the maker’s category

International Harvester Hydro 86 Engine specs

11 engine values on record for the Hydro 86.

Engine power, claimed · gross or net not stated

71 hp

53 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “IHC Hydro 86”, 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.

What engine is in a Hydro 86?

A Hydro 86 has a INTERNATIONAL HARVESTER C-291, a 6-cylinder engine.

Engine — INTERNATIONAL HARVESTER C-291 specifications
Make & modelINTERNATIONAL HARVESTER C-291Source 1
Cylinders6Source 1
CoolingLiquid-cooled
Maximum torque220 lb·ft · 298 N·m
Maximum torque speed1,600 rpm
Air cleanerdry air filter
Air cleaner, optionaldry air filter
Cylinders6
Displacement5.0–5.4 qt · 4.8–5.1 Lthe article lists alternatives
Bore, optional3.9 in · 98.43 mm
Stroke, optional4.4 in · 112 mm
Rated engine speed2,400 rpm

Source · Traktorenlexikon, “IHC Hydro 86”

Sources and how this page was built

11 engine values from Traktorenlexikon, “Farmall Farmall 756”; and Traktorenlexikon, “IHC Hydro 86”.

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: Farmall Farmall 756 — CC BY-SA 4.0, WIKIBOOKS-TL-118751 · revision 1054991. Wikibooks contributors (Traktorenlexikon). Original document
  2. Traktorenlexikon: IHC Hydro 86 — CC BY-SA 4.0, WIKIBOOKS-TL-119039 · revision 1036274. Wikibooks contributors (Traktorenlexikon). Original document