Stihl 140 vs Unitrak UD 12

Side-by-side specs comparison

Stihl 140

Stihl 140

12 HP · 1948–1954

View full specs
Unitrak UD 12

Unitrak UD 12

12 HP · 1949–1955

View full specs

Verdict by the numbers

  • The Stihl 140 and the Unitrak UD 12 deliver the same power: 12 HP.
  • The Unitrak UD 12 is the more recent model: production started in 1949, versus 1948 for the Stihl 140.

Full specs comparison

Stihl 140Unitrak UD 12
Power12 HP12 HP
Production years1948–19541949–1955
FuelDieselDiesel
Cylinders11
Displacement0.8 L
Weight770 kg
Drive2WD2WD
TransmissionSynchronizedGear
Gears (fwd/rev)3 / 14 / 1

Frequently asked questions

Which is more powerful, the Stihl 140 or the Unitrak UD 12?

The Stihl 140 and the Unitrak UD 12 deliver the same power: 12 HP.

Which is more recent, the Stihl 140 or the Unitrak UD 12?

The Unitrak UD 12 is the more recent model: production started in 1949, versus 1948 for the Stihl 140.

Other comparisons