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Mercury Outboard Gaskets

      • Sierra 18-0385 Powerhead Base Gasket Replaces 27-89937
        List Price: $3.49
        Starting At: $2.26

        Sierra 18-0385 Mercury Powerhead Base Gasket For most 4.5-9.8 HP Mercury Outboard Motors. Interchangeable with: GLM 32110 Mercury Marine 27-89937 27-31557 27-30803 27-45748 Mercury Race Outboard 27-89937

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      • Sierra 18-0879 Adapter Plate Gasket
        List Price: $7.49
        Starting At: $4.49

        Sierra 18-0879 Adapter Plate Gasket Sierra replacement adapter plate gasket for use on Mercury/Mariner Outboard Engines. Interchangeable with: GLM 31400 Mallory 9-60042 Mercury Marine 27-385011 27-38501 27-37724

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      • Sierra 18-0320 Reed Block Gasket
        List Price: $3.89
        Starting At: $1.96

        Sierra 18-0320 Reed Block Gasket Sierra Reed Block Gasket for use on Mercury Marine engines. Interchangeable with: GLM 32220 Mallory 9-60061 Mercury Marine 27-13937-6 27-139374 27-139372 27-13937

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      • Sierra 18-0372 Cylinder Block Cover Gasket
        List Price: $6.99
        Starting At: $6.17

        Sierra Cylinder Block Gasket Special Order est. 10 Days For use on 20 HP Mercury/Mariner engines Replaces:  27-78410

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      • Sierra 18-2741 Exhaust Cover Plate Gasket
        List Price: $12.49
        Starting At: $8.69

        Sierra 18-2741 Exhaust Cover Plate Gasket For use on Mercury/Mariner Outboard Engines:  65 Jet, 75hp 3 cyl., 90hp 3cyl Interchangeable with: GLM 37650 Mercury...

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      • Sierra 18-0940 Baffle Plate To Exhaust Gasket
        List Price: $6.50
        Starting At: $3.28

        Sierra 18-0940 Baffle Plate To Exhaust Gasket Sierra replacement baffle plate to exhaust gasket for use on Mercury Marine engines. Interchangeable with: GLM 32930 Mercury...

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      Mercury Outboard Gaskets and Seals