Massey Ferguson 139 (A) Transmission specs

The fastest speed on record for an MF 139 (A) is 15.5 mph (25 km/h). The gearbox itself is not on record yet.

9 transmission values on record for the MF 139 (A).

Engine power, claimed · gross or net not stated

41.4 hp

30.9 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “Massey Ferguson MF 139/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 MF 139 (A) go?

The fastest speed on record for an MF 139 (A) is 15.5 mph (25 km/h). The gearbox itself is not on record yet.

Transmission — MF 139 (A) Transmission
Drive	Available in two-wheel and four-wheel drive
Forward gears	8
Reverse gears	2
Transmission as described	8 forward/2 reverse
Clutch	Pedal operated dry double clutch
Top speed forward	15.5 mph · 25 km/h
Top speed reverse	6.3 mph · 10.12 km/hhighest reverse speed printed in the article's speed tables
Service brakes	Pedal operated internal expanding shoe brake acting on rear wheels
Steering	Mechanical ZF Gemmer steering

Source · Traktorenlexikon, “Massey Ferguson MF 139/A”

9 transmission values from Traktorenlexikon, “Massey Ferguson MF 139/A”.

Sources checked

14 SEP 2026

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

Traktorenlexikon: Massey Ferguson MF 139/A — CC BY-SA 4.0, WIKIBOOKS-TL-104276 · revision 992100. Wikibooks contributors (Traktorenlexikon). Original document