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Dolphin Trolling Fin

Dolphin Trolling Fin

Uncle Norm's Marine Products

  • $ 17900

The Dolphin-Trolling Fin gives you an edge on the water by providing exceptional tracking in wind and turbulent conditions. The fin triples the effective rudder area which improves your stability, increases your ability to turn and reduces the cycle time on your auto-pilot system. The Dolphin-Trolling Fin installs in minutes without drilling using the 45M-Clamp kit or bolt directly to cavitation plate using included hardware. Tested and approved by Alaska and Northwest fishing guides. 


  • 3x the Steering Control
  • 2x the Turn Rate
  • 3x the Effective Rudder Area
  • Exceptional Tracking in Windy and Turbulent Conditions
  • Reduced Cycling of Autopilot Units-Less Wear
  • Prevents cavitation and maximizes thrust



  • Black Powder Coated Aluminum
  • Designed for boat motors with propellers up to 10 inches in diameter
  • Compatible with autopilot systems
  • Simple installation
  • Patent Pending
  • Made in USA


No-Drill Clamp Kit (Optional)


No holes to drill when mounting the Uncle Norm's Fins with the No-Drill Clamp Set. Works on most outboard and I/O stern drives up to 300 HP. It's simple, fast and effective. Aluminum construction and powder coated for good looks and durability.

  • Designed to be Used with the Orca-Performance Fin and Dolphin-Trolling Fin
  • No Holes to Drill in the Motor
  • Machined from Solid Aluminum Bar Stock
  • Stainless Steel Hardware Included
  • Black Powder Coated Finish
  • Installs Quickly with Minimal Tools
  • Can Be Removed in Minutes
  • Simple Instructions
  • Made in USA


In Use Pictures

Customer Reviews

Based on 32 reviews

Dolphin-Trolling Fin


Dolphin-Trolling Fin


I purchased the dolphin fin from y'all and the Fin itself works great on my 25hp honda outboard, leveled out the boat the frist time i tried it, I am very pleased with it, my only problem is gettting it mounted on that engine, but with some tweaking of my own the fin works great,thank you for sloving my problem,


I’ve installed the Dolphin but have not been able to put it into the water yet. Used the bolt on clamp system which seems well designed and was easy to install. The small, old, 8hp Merc I have has a small cavitation plate so not a lot to clamp onto.


I have yet to install unit but had one on my old boat. 22' Hewescraft hardtop and it helped greatly with turning the boat. Expect the same with new boat.

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