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      Mercruiser Thermostats & Gaskets

      • EMP 75-03222 MerCruiser Thermostat Kit
        $34.55
        $28.79

        EMP 75-03222 MerCruiser Thermostat Kit This 160° Thermostat Kit is intended for use on MerCruiser engines and meets all OEM requirements. Thermostat Kit Application: For 1983 & later GM engines with standard cooling...

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      • Sierra 18-0328 Push Rod/Lifter Cover Gasket
        $15.99
        $10.99

        Sierra 18-0328 Push Rod/Lifter Cover Gasket Sierra 18-0328 Push Rod/Lift Cover Gasket fits MCM 120/140 (4 cyl.) engines with cast aluminum lifter side cover. Interchangeable with: GLM 30100 Mercruiser Stern Drive 27-34208

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      • Sierra 18-0354 Carb Mounting Gasket
        $9.99
        $7.49

        Sierra 18-0354 Carburetor Mounting Gasket Sierra replacement carburetor mounting gasket for Mercruiser Stern Drives. For 888 (2BL) Ford 302 V-8 (1971-1977) Interchangeable with: GLM 30580 Mallory 9-61006 Mercruiser Stern...

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      • Sierra 18-2844-9 Thermostat Gasket (Pkg Of 2)
        $3.99
        $3.49

        Sierra 18-2844-9 Thermostat Gasket (Pkg Of 2) Sierra replacement Mercruiser thermostat gasket. Fits: MCM/MIE GM V-8 engines Package of 2 Interchangeable with: Barr MC472748818 GLM 31510 Mallory 9-60010 Mercruiser Stern...

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      • Sierra 18-43015 Mercruiser Thermostat
        $28.49
        $21.49

        Sierra 18-43015 Mercruiser Thermostat Sierra replacement thermostat for Mercruiser Stern Drives. Fits: MCM 4.3L, 5.0L, 5.7L & 6.2L MPI engines w/dry joint exhaust & closed cooling Temperature Rating: 170°F (77°C) Interchangeable...

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      • Sierra 18-0360 Carb Mounting Gasket
        $5.49
        $3.99

        Sierra 18-0360 Carb Mounting Gasket Sierra replacement carburetor mounting gasket for use on Mercruiser Engines. For: 888 (2BBL) Ford 302 V-8 (1971-1977) For: 233 MIE For 351 V-8 (1975-1976) For: 233 Ford 351 V-8 (1975-1977) Interchangeable...

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      • Sierra 18-2919-9 Water Pump Gasket (Priced Per Pkg Of 2)
        $5.99
        $4.99

        Sierra 18-2919-9 Water Pump Gasket (Pkg Of 2) Sierra replacement water pump gasket for Mercury and Mercruiser engines. Package of 2 Interchangeable with: GLM 31050 Mallory 9-60031 Mercruiser Stern Drive 27-426311 Mercury...

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      Mercruiser OEM Engine Parts Finder

      Mercruiser Thermostats and Gaskets

      Thermostats regulate engine temperature for optimal performance, so it is important that you do not have a faulty one. When it comes time for replacement, we carry Mercruiser thermostat kits, Mercruiser thermostat replacements, and Mercruiser rubber valves. All our Mercruiser thermostats and gaskets are Sierra brand. Sierra aftermarket parts are manufactured to meet OEM requirements.