Kawasaki 440/550 Hull Extensions

(2 customer reviews)


Kawasaki 440 / 550 Hull Extensions the replace the stock caps adding an extra 1″ to reduce porpoising and improve turning grip. Rear exhaust hole is built in.


Kawasaki 440/550 hull extensions come out an extra 5/8″ to grab the water for longer for a reduction in porpoising and increases the rear grip. These improve the overall handling of the ski. These are a direct replacement of the badly-designed OEM caps that fill with water and sand.

Sold with pre-molded rear exhaust hole for those with this outlet configuration.

What You Need to Know:

  • For the lifetime warranty, you need to install this product with our approved silicone. Apply silicone to all the edges and wipe off any excess from the surface of the product. Smooth out any excess silicone along the edges as well. Allow the silicone 24 hours to cure.

  • This product fits: Kawasaki 440 / 550 (all years)
  • Installation time: 1 hour

Additional information

Weight 3 lbs
Dimensions 9 × 5 × 5 in
Rear Exhaust


2 reviews for Kawasaki 440/550 Hull Extensions

  1. Bill Kinnison (verified owner)

    Less porpoising, easier to get the bow to settle down when going over boat wakes, looks cool. Super easy install.
    Thanks guys!

  2. Matt Miller (verified owner)

    Installed on my 550sx. Looks great. Eliminates horrible stock caps that hold water. Nice upgrade.

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