Hart-Parr 28-50 vs Keck-Gonnerman 25-50

Side-by-side specs comparison

Hart-Parr 28-50

Hart-Parr 28-50

55 HP · 1927–1930

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Keck-Gonnerman 25-50

Keck-Gonnerman 25-50

55 HP · 1928–1937

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Verdict by the numbers

  • The Hart-Parr 28-50 and the Keck-Gonnerman 25-50 deliver the same power: 55 HP.
  • The Keck-Gonnerman 25-50 is the more recent model: production started in 1928, versus 1927 for the Hart-Parr 28-50.
  • The Keck-Gonnerman 25-50 is heavier: 4445 kg versus 3900 kg for the Hart-Parr 28-50.

Full specs comparison

Hart-Parr 28-50Keck-Gonnerman 25-50
Power55 HP55 HP
Production years1927–19301928–1937
FuelGasolineKerosene
Cylinders44
Displacement11.1 L9.9 L
Weight3 900 kg4 445 kg
Drive2WD2WD
TransmissionGearGear
Gears (fwd/rev)2 / 12 / 1
Length411 cm

Frequently asked questions

Which is more powerful, the Hart-Parr 28-50 or the Keck-Gonnerman 25-50?

The Hart-Parr 28-50 and the Keck-Gonnerman 25-50 deliver the same power: 55 HP.

Which is more recent, the Hart-Parr 28-50 or the Keck-Gonnerman 25-50?

The Keck-Gonnerman 25-50 is the more recent model: production started in 1928, versus 1927 for the Hart-Parr 28-50.

Which is heavier, the Hart-Parr 28-50 or the Keck-Gonnerman 25-50?

The Keck-Gonnerman 25-50 is heavier: 4445 kg versus 3900 kg for the Hart-Parr 28-50.

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