Caterpillar D6 vs Cletrac FD

Side-by-side specs comparison

Caterpillar D6

Caterpillar D6

86 HP · 1941–1947

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Cletrac FD

Cletrac FD

88 HP · 1936–1944

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Verdict by the numbers

  • The Cletrac FD is more powerful than the Caterpillar D6: 88 HP versus 86 HP (+2 HP, +2%).
  • The Caterpillar D6 is the more recent model: production started in 1941, versus 1936 for the Cletrac FD.

Full specs comparison

Caterpillar D6Cletrac FD
Power86 HP88 HP
Production years1941–19471936–1944
FuelDieselDiesel
Cylinders66
Displacement8.6 L11.6 L
TransmissionGearGear
Gears (fwd/rev)5 / 43 / 1

Frequently asked questions

Which is more powerful, the Caterpillar D6 or the Cletrac FD?

The Cletrac FD is more powerful than the Caterpillar D6: 88 HP versus 86 HP (+2 HP, +2%).

Which is more recent, the Caterpillar D6 or the Cletrac FD?

The Caterpillar D6 is the more recent model: production started in 1941, versus 1936 for the Cletrac FD.

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