Item #934029

SSI Universal Mast Boot

52 Reviews
$50.99 - $59.99
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          SSI's flexible universal mast boots are designed to fit a number of sizes of masts with deck collars of the same basic shape. The boots are molded in a series of small steps, so that the user may cut the top at the level that provides a snug fit to the mast, and cut the bottom at the first level that gives a snug fit to the deck collar.


          • Universal mast boots made of extremely flexible UV resistant vinyl
          • Molded in steps allow the top and bottom to be cut at the level that provides a snug fit to the mast and deck collar
          • Boots may be installed on stepped mast by cutting one side and glue together with included adhesive, adhesive is included in each kit
          • Top and bottom of boot are secured with stainless steel hose clamps (clamps not included)
          • Material: UV resistant vinyl

          91000000 Mast Boot Specifications:

          • Mast circumference: 17 1/2" to 31"
          • Mast collar circumference: Up to 31"

          91200000 Mast Boot Specifications:

          • Mast circumference: 23" to 37"
          • Mast collar circumference: Up to 37"

          91400000 Mast Boot Specifications:

          • Mast circumference: 30" to 44"
          • Mast collar circumference: Up to 44"
          • This model may not fit rectangle masts

          Note: it may be necessary to join 2 hose clamps together to attain required circumference.

          Installation Instructions (1.39 MB)

          Part Numbers for SSI Universal Mast Boot

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          Where to get the mast boat clamps?

          Asked by: Claude
          Just get 2 long hose clamps and put them end to end.  For example, item 880630 on goes to 12" long.  Two of them will circle a diameter of  ~24"  If your mast has a longer circumference just add a third one.  You can do this both on top and bottom of the boot.  If you put some silicone between the universal mast boot and the mast, there will be no leakage.  I added a fabric cover to hide the mast boot (I just made it with Sunbrella and velcro).
          Answered by: Sailing Norm
          Date published: 2023-11-10
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