Description

Sierra’s 18-2820-9 Outdrive Gasket fits 1967-1982 Mercruiser MC-I drives with serial numbers 6225576 and below. It is interchangeable with Mercruiser Stern Drive 27-45821, 27-64818, 27-64818A1, 27-64818A20, 27-64818A4, and 27-64818Q4. Each Sierra product meets or exceeds the original equipment part it replaces.
Fits 1967-1982 Mercruiser MC-I drives with serial numbers 6225576 and below
Interchangeable with Mercruiser Stern Drive 27-45821, 27-64818, 27-64818A1, 27-64818A20, 27-64818A4, and 27-64818Q4
Includes five gaskets per package
Each Sierra product meets or exceeds the original equipment part it replaces