• Vehicle type: unspecified
  • Rigid chassis
  • WhichTractor size: Utility
  • No lab test on file
  • 1941–1946
  • 9,174 built

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

MASSEY-HARRIS M-H 81 Transmission specs

10 transmission values on record for the M-H 81.

Engine power, claimed · gross or net not stated

20.8 hp

15.5 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “Massey-Harris Massey-Harris 81”, 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 M-H 81 go?

The fastest speed on record for a M-H 81 is 15.5 mph (25 km/h). The gearbox itself is not on record yet.

Transmission — M-H 81 Transmission
Drive2WD
Forward gears4
Reverse gears1
Transmission as described4 forward/1 reverse
ClutchPedal operated dry Borg & Beck single disc clutch
Top speed forward15.5 mph · 25 km/h
Top speed reverse2.5 mph · 4.02 km/hhighest reverse speed printed in the article's speed tables
Service brakesMechanically operated drum brake acting on the differential designed as steering brake
SteeringMechanical worm steering
Front axleOscillating front axle with fixed track width

Source · Traktorenlexikon, “Massey-Harris Massey-Harris 81”

Sources and how this page was built

10 transmission values from Traktorenlexikon, “Massey-Harris Massey-Harris 81”.

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: Massey-Harris Massey-Harris 81 — CC BY-SA 4.0, WIKIBOOKS-TL-116934 · revision 1065856. Wikibooks contributors (Traktorenlexikon). Original document