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Davis Instruments 440 Doel-Fin Hydrofoil Stabilizer Set Black

Manufacturer

Davis Instruments

<p>Davis Instruments, established in 1963, is a recognized leader in developing and manufacturing precision weather, marine and outdoor instrumentation from their facility in Hayward, California. For over six decades, the brand has built a reputation among boaters, anglers, and sailing enthusiasts for creating innovative products that enhance vessel performance, safety, and comfort on the water.</p><h3>Engineering Excellence for Marine Applications</h3><p>Davis products are proudly designed, manufactured, assembled and put through rigorous environmental testing to ensure they can withstand harsh marine conditions. The company's commitment to quality has made their marine accessories trusted tools for both recreational boaters and serious fishermen. From powerboats to sailboats, Davis Instruments offers practical solutions that address real challenges faced by vessel operators.</p><h3>Performance-Enhancing Products</h3><p>Among the brand's most popular offerings are their <a href="/7311-davis-instruments-hydrofoils-trolling-plates-200563">hydrofoils and trolling plates</a>, which significantly improve boat handling and efficiency. The Doel-Fin is the original hydrofoil developed by an aeronautical engineer to improve overall performance on boats with outboard motors, providing greater stability, consistent planing at lower RPM, and faster out-of-the-hole performance. The Happy Troller trolling plate allows fine control of trolling speed while enhancing stability and reducing porpoising in rough water—essential features for serious anglers.</p><h3>Onboard Comfort and Protection</h3><p>Davis understands that maintaining a dry, comfortable environment aboard is crucial for protecting both crew and equipment. Their <a href="/7311-davis-instruments-dehumidifiers-200313">dehumidifiers</a> help combat moisture buildup in cabins and storage compartments, preventing mildew and protecting valuable electronics and supplies. For vessel maintenance, Davis offers specialized <a href="/7311-davis-instruments-fiberglass-general-purpose-cleaners-200398">fiberglass and general purpose cleaners</a> formulated to keep boats looking their best season after season.</p><h3>Navigation and Anchoring Solutions</h3><p>Precision and reliability matter when it comes to wind monitoring and anchoring systems. Davis <a href="/7311-davis-instruments-tell-tales-wind-direction-indicators-accessories-201057">tell-tales, wind direction indicators and accessories</a> provide sailors with accurate wind information for optimal sail trim and navigation. WindTrak wind vanes offer exceptional performance at the best value of any wind indicator worldwide, with the secret in the sapphire jewel bearing. The company's <a href="/7311-davis-instruments-anchor-accessories-200089">anchor accessories</a> include innovative line snubbers and chafe guards that protect dock lines and reduce shock loads, helping to secure vessels safely whether at anchor or at the dock.</p><h3>Trusted by Boaters Worldwide</h3><p>Davis Instruments has earned the loyalty of boating enthusiasts around the globe by consistently delivering products that combine innovation with affordability. The company is known for precise engineering of reliable and accurate products, and for providing outstanding customer service. Whether you're outfitting a fishing boat, sailboat, or cruiser, Davis Instruments offers the quality marine accessories that help you get the most from your time on the water.</p>

Part Number

440
06/01/2036 1:32 PM
Sale Price

$32.91

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Davis Instruments 440 Doel-Fin Stabilizer is the original hydrofoil design that revolutionized boat performance. This set includes both left and right fins, molded in two pieces from guaranteed unbreakable high-strength plastic. Each hydrofoil is engineered to flex independently, absorbing shock and providing superior stability in varying water conditions.

Key Features:

  • Original Doel-Fin hydrofoil design for proven performance
  • Two-piece construction with independently flexing foils for shock absorption
  • Guaranteed unbreakable high-strength plastic construction
  • Reduces fuel consumption through improved hull efficiency
  • Provides greater stability and smoother ride in choppy water
  • Enables consistent planing at lower RPM
  • Delivers faster out-of-the-hole performance
  • Black finish for universal boat compatibility
  • Complete set includes left and right fins

The Doel-Fin hydrofoil attaches to the lower unit of your outboard or sterndrive and creates lift, keeping your bow down while reducing drag. This translates to improved fuel economy, better handling, and enhanced overall boat performance. Ideal for boats that struggle with bow rise, porpoising, or inefficient planing.

Products specifications

Description

For most outboards 5 hp and up

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