• Vehicle type: unspecified
  • Rigid chassis
  • WhichTractor size: Standard-size
  • No lab test on file
  • 1956–1958
  • 1,795 built

It sits on the standard-size/high-power boundary, so either size is a fair description. 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 W-450 Transmission specs

10 transmission values on record for the W-450.

Engine power, claimed · gross or net not stated

51.2 hp

38.2 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “IHC International W-450”, 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.

How fast will a W-450 go?

The fastest speed on record for a W-450 is 16.2 mph (26 km/h). The gearbox itself is not on record yet.

Transmission — W-450 Transmission
Drive2WD
Forward gears5–10the article lists alternatives
Reverse gears1–2the article lists alternatives
Transmission as described5 forward/1 reverse or 10 forward/2 reverse
ClutchPedal-actuated dry single-plate clutch
Top speed forward16.2 mph · 26 km/h
Top speed reverse3.2 mph · 5.15 km/hhighest reverse speed printed in the article's speed tables
Service brakesPedal-actuated disc brakes acting on differential side shafts
SteeringMechanical gear steering
Front axleOscillating front axle

Source · Traktorenlexikon, “IHC International W-450”

Sources and how this page was built

10 transmission values from Traktorenlexikon, “IHC International W-450”.

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 International W-450 — CC BY-SA 4.0, WIKIBOOKS-TL-118437 · revision 1031604. Wikibooks contributors (Traktorenlexikon). Original document