Davis Instruments 440 Hydrofoil Black Outboard Outdrives Doel-Fin Stabilizer

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  • Regular price $39.95
  • Will be in stock after


  • Davis Instruments 440 Hydrofoil Black Outboard Outdrives Doel-Fin Stabilizer
  • The Original Hydrofoil
  • Molded in 2 pieces of guaranteed, unbreakable, high-strength plastic. 
  • Each foil is designed to flex independently to absorb shock. 
  • Cuts fuel consumption, greater stability, consistent planing at lower RPM, faster out-of-the-hole performance, steadier turns, higher top-end speeds, and lower bow rise at all speeds.
  • Doel-Fin improves overall performance– even on boats with well-designed hulls
  • Save up to 30% on fuel consumption
  • Maintain lower planing speeds without constant throttle adjustments for wakeboarding, tubing, or beginning skiers
  • Less bow rise for better visibility and increased safety
  • Simple 15-minute installation; hardware included
  • For use with:
    • All Outboard motors and Sterndrive units from 5 HP and up. (Volvo Penta outdrives excepted)
  • Manufacturer: Davis Instruments
  • Model Number: Doel-Fin
  • Part Number: 440