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Dripless. Independent. Low Maintenance.

Trusted for more than 30 years, the Norscot Shaft Seal is a high-performance, bellow-free, dripless propeller shaft seal for power and sail boats.

Our Signature Product: The Norscot Shaft Seal

Our simple, machined design creates a strong and durable dripless shaft seal for longevity in extreme environments.

Norscot Propeller Shaft Seal Kit - 1 1/2" shaft diameter
Regular price
from $466.00
Sale price
from $466.00
Regular price
Unit price
per 
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What our customers are saying...

“A simple design, yet a burly system. I sleep well at night knowing I have a Norscot.”

Paul, Owner of 1976 Islander 28′ for 18 years

“After 31 years, 13,000 open-ocean miles plus countless day-sails and overnighters, my Norscot Shaft Seal is still going strong. Total maintenance during those 31 years? I’ve topped off the ATF twice. No leaks. I highly recommend the Norscot Shaft Seal. No reservations whatsoever.”

B.B., 1981 Tatoosh 42

“I’ve used Norscot for 20 years- never have to worry about salt
water in the engine room. It’s easy to maintain. I still love it after
20 years.”

Tony, Owner of 1991 Tollycraft Sport Cruiser 30 for 20 years

“I have more than 4500 hours on my Eastbay 38…all with the same seals aboard. Great product- thanks for inventing it!”

Tom, M/V Jo

“I installed new seals in my boat after having the shaft out for repairs. I put 400 hrs per year on the boat and I might go through a 1/4 cup per year. All good in western Canada!”

Bill Higgs

“It doesn’t drip or leak. I’ve had the boat for 18 years, put 1500 hours on it during that time without the need to replace the seals. Couldn’t ask for anything better!”

Rick, Owner of 1995 Bayliner 33′ for 18 years

Why Norscot is the only choice

At the heart of the Norscot is a marine-grade bronze housing. Inside the housing, lip-type oil seals form a leak-free, press-fit with excellent retention of light oil. The kit includes our own custom aluminum installation or 'transfer’ tool to protect the lip-type seals during installation.

Our unique system is the only dripless shaft seal on the market using Transmission Fluid (ATF) for lubricant contained in a specially designed and molded reservoir bottle, creating an independent entity unlike water-injected dripless systems.  

Norscot’s overall simple and tight design creates a shaft seal that is long-lasting, safe, reliable, with low maintenance.

So, no matter what happens with your engine or the condition of the water you're in, you'll appreciate the unmatched performance of The Norscot Shaft Seal and cruise worry-free for years to come.

Learn More About Norscot

Parts & Accessories

  • Lip-Type Oil Seals
    Regular price
    from $24.47
    Sale price
    from $24.47
    Regular price
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    per 
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  • Installation Tool
    Regular price
    from $6.10
    Sale price
    from $6.10
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    per 
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  • Reservoir with Cover
    Regular price
    $17.46
    Sale price
    $17.46
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    per 
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  • Mounting Bracket
    Regular price
    $20.35
    Sale price
    $20.35
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    per 
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  • Hose Clamps
    Regular price
    from $3.14
    Sale price
    from $3.14
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    per 
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Enjoy a dry bilge... and real peace of mind

Since its debut at the Great Seattle Boat Show in 1990, the Norscot Dripless Shaft Seal has been a trusted shaft seal around the world.

If you’re looking for a worry-free, low-maintenance cruising experience for many years to come, we invite you to try a shaft seal known for its durability, longevity, and independent design.

NEED INSTALLATION SUPPORT?

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