Sierra 18-0940 Baffle Plate To Exhaust GasketSierra replacement baffle plate to exhaust gasket for use on Mercury Marine engines.Interchangeable with: GLM; 32930; Mercury Marine; 27-854882; 27-854881; 27-85488; 27-78027; 27-55308; Application:Mercury Marine Model: 35; 1987-1989; s/n 9466647 & up; Model: 35; 1987-1989; s/n B110789 & up; Model: 35; 1984-1986; s/n 6445653 thru 0B110788; Model: 400; s/n 2874704 thru 3336257; Model: 402; s/n 3336258 thru 4117709; Model: 402; 1975-1977; s/n 4117710 thru 4860102; Model: 402, 40; 1980-1983; s/n 5556230 & up; Model: 402, 40; 1978-1979; s/n 4860103 thru 5556229;