Doel-Fin Hydrofoil, Black - Davis
Price: $32.16
Save: $6.13
(16% Off $38.29)
Part # 440
2nd Day Air for $2.99 More Eligible
SHIPS TOMORROW!* if ordered in 23 hrs 26 mins.
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  • The original hydrofoil developed by an aeronautical engineer to improve overall performance on all boats with outboard motors or outdrive units.
  • Molded 2 piece construction guaranteed unbreakable.
  • The positive effects include greater stability, consistent planing at lower RPM, faster out-of-the-hole performance, steadier turns, higher top-end speeds, better fuel economy and lower bow rise at all speeds.
  • Attaches to the cavitation plate: slides on then you drill holes to attach.
  • Average Customer Review for Doel-Fin Hydrofoil, Black - Davis
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    Good Investment
    by Scott from Huntsville, Ontario on June 27, 2011
    Easy install. Better overall performance. My boat planes faster and at lower speeds.
    (26 of 29 people found this review helpful)
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    Will this work on a Johnson 9.9?
    Doel-Fin fits all outboard and stern drive motors from 5 horsepower up.

    Will this work on a 150 shp yamaha?
    Yes it will work on that engine.

    Will it work on 5.7 liter eng merc i/o?
    Yes. It works with outboards and sterndrive engines.

    Will this Doel-Fin control a Deck Boat that " HUNTS" at low rpm's ?
    It will help control consistent planing at lower RPM's, yes.

    Will it fit a 1986 40hp Mercury?
    Yes. It is designed for any engine and horse power.
    It is universal in its design so yes this will fit your motor.

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