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Dolphin-Trolling Fin

Dolphin-Trolling Fin

Uncle Norm's Marine Products

  • $ 17900

Add No-Drill Clamp set? ($69)

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

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Customer Reviews

Based on 6 reviews
Dolphin Trolling Fin

This product arrived with me in UK very quickly . I am delighted with it , it is very good quality and improves the handling of my boat considerably ( particularly at low speed) I can recommend this item and Uncle Norm's Product Team very highly .

Thanks Russell, I am glad that our fins did the trick for you. We don't have many of our fins in the UK yet but that is starting to change. Please send us some photos when you can.
Works great

Works great . I fish in a number of Sierra lakes which are usually windy. It has made a tremendous difference turning in the wind and keeping a straight line while trolling. Easy to install and works as advertised.

Quality Delivery Commitment

Uncle Norm's dolphin fin is very high quality. All components are as promised, extremely good workmanship.

Delivery arrived as promise and on schedule.

Clearly commitment to customer satisfaction seems important to Uncle Norm's Marine Products as evident with their communication to me.

5 star


Nicholas, when you try it out, I would love to get some photos or video! Thanks for your comments.
Dolphin fin

Outstanding customer service, very responsive to your needs. Fin is awesome