Shaft Seals
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Shaft Seals

Protect your boat and its engine with high-quality shaft seals, designed to prevent water from entering the hull and provide long-lasting durability.


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  1. PSS Shaft Seal 1-½" Shaft 2-½" Tube

    Special Price $439.49 Regular Price $517.00
  2. PSS PRO Shaft Seal 3-1/2" Shaft & 5" Tube

    $2,194.50
    Out of stock
  3. PSS PRO Shaft Seal 3" Shaft & 4-1/2" Tube

    $1,347.50
    Out of stock
  4. PSS PRO Shaft Seal 2-1/2" Shaft & 4" Tube

    $979.00
    Out of stock
  5. PSS PRO Shaft Seal 2-1/4" Shaft & 4" Tube

    $979.00
    Out of stock
  6. PSS PRO Shaft Seal 2-1/4" Shaft & 3-1/2" Tube

    $979.00
    Out of stock
  7. PSS PRO Shaft Seal 2" Shaft & 3-1/2" Tube

    $725.00
    Out of stock
  8. PSS PRO Shaft Seal 2" Shaft & 3" Tube

    $797.50
    Out of stock
  9. PSS PRO Shaft Seal 1-3/4" Shaft & 3-1/2" Tube

    $693.00
    Out of stock
  10. PSS PRO Shaft Seal 1-3/4" Shaft & 3" Tube

    $693.00
    Out of stock
  11. PSS PRO Shaft Seal 1-1/2" Shaft & 2-1/2" Tube

    $610.50
    Out of stock
  12. PSS PRO Shaft Seal 1-1/2" Shaft & 2-1/4" Tube

    $610.50
    Out of stock

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WHAT IS A SHAFT SEAL?

A shaft seal is a mechanical seal that is installed around a boat's propeller shaft to prevent water from entering the hull.

Shaft seals are important because they prevent water from entering the boat's hull and damaging the engine or other components. They also help to maintain a dry bilge, which can help to prevent corrosion and other problems.


HOW DO SHAFT SEALS WORK?

Shaft seals work by creating a barrier between the water outside the boat and the engine or other components inside the boat. Most shaft seals use a mechanical seal that consists of a stationary portion and a rotating portion. The stationary portion is attached to the boat's hull, while the rotating portion is attached to the propeller shaft. When the shaft rotates, the seal rotates with it, creating a tight seal that prevents water from entering the boat.


WHAT ARE THE DIFFERENT TYPES OF SHAFT SEALS?

There are several different types of shaft seals, including lip seals, stuffing box seals, and mechanical face seals.

  • Lip seals are the simplest type of seal and consist of a rubber lip that seals against the propeller shaft.
  • Stuffing box seals use a packing material that is compressed around the propeller shaft to create a seal.
  • Mechanical face seals use two flat faces that are held together by a spring to create a seal.

The right shaft seal for your boat will depend on a variety of factors, including the size and type of your boat, the type of propulsion system you have, and the type of water you will be operating in. It's important to choose a seal that is designed for your specific application to ensure reliable and long-lasting performance.


HOW OFTEN SHOULD SHAFT SEALS BE REPLACED?

Shaft seals should be inspected regularly and replaced as needed. The frequency of replacement will depend on a variety of factors, including the type of seal, the age of the seal, and the conditions it is exposed to. In general, lip seals should be replaced every 2-3 years, while mechanical face seals can last up to 10 years or more.


HOW CAN I MAINTAIN MY SHAFT SEALS?

To maintain your shaft seal, it's important to keep it clean and free of debris. You should also inspect it regularly for signs of wear or damage, and replace it as needed. Some seals may require periodic lubrication or adjustment to ensure proper performance.


WHAT ARE THE SIGNS THAT MY SHAFT SEAL MAY NEED TO BE REPLACED?

Signs that your shaft seal may need to be replaced include water in the bilge, excessive vibration or noise, or visible wear or damage to the seal. If you notice any of these signs, it's important to have your seal inspected by a qualified technician and replaced if necessary.

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