Free shipping on orders over $150. Learn more

Davis Instruments  |  SKU: EM-52100  |  Barcode: 011698006397

Davis Whale Tail XL [448]

Regular price $129.99

SHIPS SAME DAY BEFORE 3PM CST! Shipping Policy


Refund & Return Policy

Returns are accepted within 30 days after shipment. To be eligible for a return, items must be unused, uninstalled, and in their original packaging, and proof of purchase is required. The following items are not eligible for return: Installed or used products, clearance or final-sale items, trolling motors, programmed AIS units, KVH Starlink products that are registered or opened, special-order products, or products displaying the notice “This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.” in their description. Opened or unsealed DVDs, CDs, or cartography (unless defective) are not eligible for return. Return Merchandise Authorization (RMA) numbers are required for all returns. Learn more.

Shipping Policy

Egret Marine ships marine parts and accessories within the contiguous United States only. Orders are typically processed same day if placed before 3pm CST, excluding weekends and holidays. Learn more.

Product Details

Whale Tail XL

Aluminum Stabilizer and Ski Boat Fin

Improves performance in any I/O or outboard motor!

The Whale Tail XL extends out behind the prop to utilize prop wash energy which is normally lost. Whale Tail transforms this energy into lift for immediate response when the throttle is applied.

  • Unique hydrodynamic design
  • Stabilizes bow-light boats
  • Pops skiers up in less time


Flattens wake for water skiing; creates positive, skid-free turns:
  • With bow lowered, visibility and safety is improved
  • Smooths out ride in rough water
  • Reduces porpoising & cavitating
  • Increases top speed and fuel savings in most applications
  • Mounts on the anti-cavitation plate of all inboard/outboards and outboards
  • Installs in 15 minutes with stainless steel hardware included
  • Marine grade aluminum with durable anodized finish
  • Use the Whale Tail XL year-round in freshwater or saltwater to improve performance of any boat!