Sierra 18-3892 Head Gasket
- Brand:
- Sierra
- Part no:
- 18-3892
Where to buy
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The Sierra 18-3892 is a cylinder head gasket made for Yamaha outboard engines. The stated fitment is the Yamaha C40 from 1990-97. It is listed as interchangeable with four Yamaha part numbers, 676-11181-03-00, 676-11181-A0-00, 676-11181-A1-00 and 676-11181-A2-00, so you can match it against whichever number is on your old gasket or in your engine's parts book.
Our take
The 18-3892 names one engine, the Yamaha C40 from 1990-97, so the fitment is specific. If your outboard is not that model, check the Yamaha numbers 676-11181-03-00 through A2-00 against your own before relying on it.