Description

Sierra’s 18-2805-9 Block Cover Gasket is designed for use with Mercury 35-40 HP engines. It is interchangeable with GM 31920 and Mercury Marine 27-55307, 27-74708, 27-78029, 27-85490, 27-85490-2, 27-854901, 27-856729. Each Sierra product meets or exceeds the original equipment part it replaces.
Designed for use with Mercury 35-40 HP engines
Interchangeable with GM 31920 and Mercury Marine 27-55307, 27-74708, 27-78029, 27-85490, 27-85490-2, 27-854901, 27-856729
Includes two gaskets per package
Each Sierra product meets or exceeds the original equipment part it replaces