18-4396 Exhaust Manifold Gasket for Mercruiser Stern Drives
Mercruiser Stern Drive, 165 GM 250 I/L6, 2770032 Thru 5178958, 1970-1978
Mercruiser Stern Drive, 165 GM 250 I/L6, 5178959 & Up, 1979-1981
Product OverviewReplaces: Mercury Marine 27-46401A1
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