WhichTractor
  • Vehicle type: unspecified
  • WhichTractor size: Utility
  • No lab test on file
  • 1939–1948
  • 117,552 built

WhichTractor size, not the maker’s category

International Harvester A/AV Transmission specs

8 transmission values on record for the A/AV.

Engine power, claimed · gross or net not stated

19 hp

14 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “McCormick Farmall-A”, 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 an A/AV go?

The fastest speed on record for an A/AV is 9.3–12.4 mph (15–20 km/h). The gearbox itself is not on record yet.

Transmission — A/AV Transmission
Drive2WDSource 1,Source 3
Forward gears4Source 1
Reverse gears1
Transmission as described4 forward/1 reverseSource 1
ClutchPedal operated dry ROCKFORD single plate clutchSource 1Sources disagreePedal operated dry ROCKFORD single plate clutch type 9 inches (Traktorenlexikon, “McCormick Farmall-A”)
Top speed forward9.3–12.4 mph · 15–20 km/hthe article lists alternatives
Top speed reverse3.6 mph · 5.83 km/hhighest reverse speed printed in the article's speed tables
SteeringMechanical gear steering

Source · Traktorenlexikon, “IHC Farmall-A”

Sources and how this page was built

8 transmission values from Traktorenlexikon, “IHC Farmall-A”; Traktorenlexikon, “McCormick Farmall-A”; and Traktorenlexikon, “Farmall Farmall-A”.

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-A — CC BY-SA 4.0, WIKIBOOKS-TL-118224 · revision 1055008. Wikibooks contributors (Traktorenlexikon). Original document
  2. Traktorenlexikon: IHC Farmall-A — CC BY-SA 4.0, WIKIBOOKS-TL-118241 · revision 1055556. Wikibooks contributors (Traktorenlexikon). Original document
  3. Traktorenlexikon: McCormick Farmall-A — CC BY-SA 4.0, WIKIBOOKS-TL-117747 · revision 1059885. Wikibooks contributors (Traktorenlexikon). Original document