We use cookies to ensure that we give you the best experience on our website. If you continue we'll assume that you understand this. Learn more
Cart 0
Orca Performance Fin with No-Drill Clamp

Orca Performance Fin with No-Drill Clamp

Uncle Norm's Marine Products

  • $ 25800

PN: 45103
UPC: 810009490227

The Orca-Performance Fin triples the effective rudder area providing a tighter turn radius and sharp crisp directional control at any speed. The larger surface area of the Orca-Performance Fin blocks cavitation better than hydrofoils while adding the benefit of enhanced slow speed maneuvering and heading control.

" Your ORCA FIN WITH THE CLAMP MOUNT is an amazing product!!! My crestliner discovery 1450 with a 40 Mercury outboard had a serious problems with HIGH BOW RISE to where I couldn't see in front of me and the boat would not plane, even at full throttle. The ORCA FIN was added to my boat along with a 4 blade propeller and both problems are gone. There is virtually no bow rise and the boat planes almost immediately!!!! This video truly shows the effectiveness of the ORCA FIN. Thank you! -Thomas


The Orca-Performance Fin installs in minutes without drilling using the 45M-Clamp kit or bolt directly to the cavitation plate using included hardware. The Orca fin is usually mounted with the fins down but may be installed fins up without modification if you desire less aggressive control. Used and tested on fishing boats, runabouts, pontoon boats, cruisers, ski boats and bass boats since 2002.


  • 3x the Steering Control
  • 2x the Turn Rate
  • 3x the Effective Rudder Area
  • Get on plane faster
  • Prevents Cavitation
  • Maximizes Thrust Resulting in Improved Engine Performance
  • Reduces Bow Rise
  • Improves Visibility



  • Black Powder Coated Aluminum.
  • Made from 3/16" Aluminum.
  • Designed for boat motors with propellers up to 16 inches in diameter
  • Use on outboard and I/O engines up to 300HP (Not recommended for the Volvo with exhaust through cavitation plate.)
  • Compatible with autopilot systems
  • Simple installation
  • Patent Pending
  • Made in USA

    No-Drill Clamp Kit (included)


    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

      We Also Recommend

      Customer Reviews

      Based on 1 review
      David Gualdoni (Elburn, US)
      Orca fin

      I bought this fin for my 24 ft pontoon boat hoping that it will help with my turning and cavitation problems. We will find out once the weather breaks.