VALMET 665 Transmission specs

The fastest speed on record for a 665 is 18.6–24.9 mph (30–40 km/h). The gearbox itself is not on record yet.

11 transmission values on record for the 665.

Engine power, claimed · gross or net not stated

78.9 hp

58.8 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “Valmet 665”, 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 665 go?

The fastest speed on record for a 665 is 18.6–24.9 mph (30–40 km/h). The gearbox itself is not on record yet.

Transmission — 665 Transmission
Drive	4WD
Forward gears	8–12the article lists alternatives
Reverse gears	4–8the article lists alternatives
Transmission as described	8 forward/4 reverse and 12 forward/8 reverse
Clutch	Dry LuK double clutch
Top speed forward	18.6–24.9 mph · 30–40 km/hthe article lists alternatives
Top speed reverse	6.7 mph · 10.8 km/hhighest reverse speed printed in the article's speed tables
Creeper gears available, optional	Yes
Service brakes	Pedal operated wet GIRLING multi-disc brake
Steering	Hydrostatic steering
Differential lock	Mechanically operated differential lock

Source · Traktorenlexikon, “Valmet 665”

11 transmission values from Traktorenlexikon, “Valmet 665”.

Sources checked

14 SEP 2026

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

Traktorenlexikon: Valmet 665 — CC BY-SA 4.0, WIKIBOOKS-TL-116429 · revision 998457. Wikibooks contributors (Traktorenlexikon). Original document