WhichTractor
  • Rigid chassis
  • WhichTractor size: Standard-size
  • No lab test on file
  • 1993–2004

WhichTractor size, not the maker’s category

VALMET 8400 Engine specs

14 engine values on record for the 8400.

Engine power, claimed · gross or net not stated

138.1 hp

103.0 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “Valmet 8400”, 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.

What engine is in an 8400?

An 8400 has a Valmet 620 DS, a 6-cylinder 6.60 L diesel engine.

Engine — Valmet 620 DS specifications
Make & modelValmet 620 DSSource 1
FuelDieselSource 1
Cylinders6Source 1
Displacement402.6 ci · 6.60 LSource 1
AspirationSuperchargedSource 1
CoolingLiquid-cooled
Fuel injectionDirect injection
Maximum torque384 lb·ft · 520 N·m
Maximum torque speed1,550 rpm
Air cleanerValmet dry air filter including cyclone prefilter
Cylinders6
Displacement7.0 qt · 6.6 L
Bore4.3 in · 108 mm
Stroke4.7 in · 120 mm
Rated engine speed2,200 rpm
Torque rise16–30 %the article lists alternatives

Source · Traktorenlexikon, “Valmet 8400”

Sources and how this page was built

14 engine values from Traktorenlexikon, “Massey Ferguson MF 3670”; and Traktorenlexikon, “Valmet 8400”.

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 Ferguson MF 3670 — CC BY-SA 4.0, WIKIBOOKS-TL-87099 · revision 1066530. Wikibooks contributors (Traktorenlexikon). Original document
  2. Traktorenlexikon: Valmet 8400 — CC BY-SA 4.0, WIKIBOOKS-TL-116493 · revision 999858. Wikibooks contributors (Traktorenlexikon). Original document