Cylinder Block Head Gasket - 18-2943 - Sierra
Price: $14.99
Save: $4.50
(23% Off $19.49)
Part # 18-2943
2nd Day Air for $2.99 More Eligible
SHIPS TOMORROW!* if ordered in 20 hrs 49 mins.
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This item is found in the following Product Families
Replaces OEM part #
  • MERCURY MARINE 27-44328-4
    For: 81 Jet, 100 HP, 115 HP, and 125 HP 4 cyl. outboards
Is replacing this gasket something a consumer can do?
Replacing a head gasket is a DIY project. You will want to follow a repair manual, but basic idea is to remove the cylinder head cover and scrape out the old gasket. If you have more technical questions you should contact a dealer or you can post a question in our forums at

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