Skip to product information
Part number 18-0139.
Sierra powerhead base gasket for Mercury and Mariner outboard engines.
Replaces OEM Mercury Marine part numbers 27-884511, 88451, 78623.
Please check the part nunbers for your fitment needs.
cat-jcab2
18-0139 POWERHEAD BASE GASKET for MERCURY/MARINER 27-884511 78623
$17.62
Sierra powerhead base gasket for Mercury and Mariner outboard engines.
Replaces OEM Mercury Marine part numbers 27-884511, 88451, 78623.
Please check the part nunbers for your fitment needs.
cat-jcab2