Sierra International  18-0994-9 Carburetor Mounting Gasket - Pack of 2 Sierra Carburetor Mounting Gasket Meets or exceeds the original equipment quality Sierra part number: 18-0994-9 Interchangeable with the following: Barr MC472770143, GLM 32180, Mallory 9-61011, Mercruiser 27-8079821, 27-701431, 27-807982, 27-70143, 27-80798B, 27-70143B1