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Seachoice Universal Boat Motor Flusher, Muff Style

  • Based on 0 reviews
Condition: New
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$9.99 Why this price?
Holiday Deal · 27% off was $13.66

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As low as $2 / mo
  • – 4-month term
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This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Dec 28
Order within 20 hours and 31 minutes
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Style: Rectangular


Features

  • Extend the life of your engine by flushing away salt, silt and sand after every use
  • Connects to a standard garden hose
  • Universal design fits a wide variety of engines
  • Prevents clogging and corrosion
  • Flexible rubber cups.
  • Manufacturer part number 50-18321

Item Package Dimensions L x W x H: ‎14.06 x 4.57 x 3.11 inches


Package Weight: ‎0.38 Kilograms


Item Dimensions LxWxH: ‎4.75 x 3.5 x 16.5 inches


Item Weight: ‎0.01 Ounces


Brand Name: ‎SEACHOICE


Warranty Description:


Model Name: ‎18321


Color: ‎No Color


Material: ‎Rectangular Motor Flusher


Suggested Users: ‎Gender Neutral


Number of Items: ‎1


Manufacturer: ‎Seachoice


Part Number: ‎50-18321


Style: ‎Rectangular


Included Components: ‎Rectangular Motor Flusher


Size: ‎One Size


Fishing Technique: ‎Spinning


Date First Available: February 6, 2007


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Dec 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good value
Style: Round
Works great, no issues on a 8 hp all the way up to a 250 hp. I have had it for a while now and still in great shape. Would buy again, easy to use.
Reviewed in the United States on October 15, 2025 by mattyv

  • Flush the outboard Scotty!
Style: Round
These work well. Amazingly, nobody knows what happened to the last pair. I highly recommend that you keep one of these on hand as a spare!
Reviewed in the United States on October 31, 2025 by Wise reader

  • Amazon listens!
Style: Universal Round
Perfect! Thanks gor leaving in our bin!!!
Reviewed in the United States on September 4, 2025 by Elaine D. Hoeffner

  • Better than the double water entry rectangular muffs
Style: Universal Round
This little cheap device does a lot more than the more expensive double sided rectangular one. I see the water pump out the tell tale immediately after I turn on the water. The more expensive model I’ve seen work on other motors but not on my Evinrudes. Came to a point where I was using my garbage cans to run my motors with water. I highly recommend this product. ... show more
Reviewed in the United States on November 22, 2025 by Marco H.

  • Great value
Style: Universal Round
Great value, rubber hold on tight
Reviewed in the United States on November 2, 2025 by Palmieri_silverado

  • Bargain
Style: Round
Worked perfectly for my Mercruiser I/O.
Reviewed in the United States on October 30, 2025 by RAL

  • Works ok
Style: Round
Works great
Reviewed in the United States on December 5, 2025 by Terry R.

  • Good item!
Style: Round
This was delivered quickly, and it was the correct item to help me work on my boat motor. The price was good too.
Reviewed in the United States on May 30, 2025 by DWW

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