Mercruiser Housing Plugs

Mr Alpha Housing Plug for Mercruiser 19-47579, GLM 21890 - Sierra
Your Price: $3.99
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(28% Off $5.57)
Part # 18-3232-9 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 16 hrs.
Replaces OEM part #
  • MERCURY MARINE 19-47579
Package of 5
For: Mercruiser MR ALPHA
Based On 1 Review | Write Review
Housing plug
by Stan from Vancouver, Washington on September 08, 2014
They sent me four of the wrong size plugs and shorted me on the end caps that I ordered, only received 2 end caps and wanted 4.
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Hello, I have a 1995 Alpha 1 outdrive. Quicksilver P/N 19-47579 is about 1/3 too small for the hole in my outdrive. Is there an alternate larger plug? Thanks?
Unfortunately, we do not have anything larger than this. We suggest posting a question on our Forum page. Thousands of boaters visit there every day and may be able to assist you in finding a housing plug that matches your requirements. The Forum can be found at
I have found another part number that may be the larger plug. Quicksilver P/N 19-32297 seems to be similar and is also called out for some Alpha 1 drives.
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