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      Mercruiser Thermostats & Gaskets Product Listings

      • Sierra 18-0462 Carb Mounting Gasket
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        Sierra 18-0462 Carb Mounting Gasket

        $11.19
        $9.49

        Sierra 18-0462 Carburetor Mounting Gasket Sierra replacement carburetor mounting gasket for use with Mercruiser Stern Drive. Interchangeable...

      • Sierra 18-3652 Thermostat Kit
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        Sierra 18-3652 Thermostat Kit

        $36.69
        $26.39

        Sierra 18-3652 Mercruiser 160 Degree Thermostat Kit Sierra high-quality replacement thermostat kit for Mercruiser Stern Drives. 160 Degree Temperature Rating Kit Contains: (1) 18-2555...

      • Sierra 18-3552 Thermostat Replaces 76270T
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        Sierra 18-3552 Thermostat Replaces 76270T

        $28.29
        $20.39

        Sierra 18-3552 Thermostat for Mercruiser and Crusader Engines Sierra replacement thermostat for Crusader and Mercruiser engines. Temperature Rating: 160°F For: Fresh Water Cooling Fits:...

      • Sierra 18-0487 Intake Gasket
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        Sierra 18-0487 Intake Gasket

        $122.29
        $88.09

        Sierra 18-0487 Intake Gasket Sierra 18-0487 Intake Gasket fits MCM 262 Mag & 4.3L/LX/LH/LXH (Gen+) (1996 & up) Interchangeable with: Mallory 9-61214 Mercruiser Stern...

      • Sierra 18-0386 Water Pump Body Gasket
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        Sierra 18-0386 Water Pump Body Gasket

        $2.99
        $2.59

        Sierra 18-0386 Water Pump Body Gasket - Special Order est. 10 Days Interchangeable with: GLM  32730 Mercruiser Stern Drive 27-72780 27-94914  

      • Sierra 18-2564-1 Impeller Gasket
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        Sierra 18-2564-1 Impeller Gasket

        $18.49
        $13.29

        Sierra 18-2564-2 Impeller Gasket Sierra high-quality engine parts are designed to meet OEM specifications. For use on Chrysler/Force/US Marine, Honda Outboards, Mercruiser Stern Drives, and Mercury...

      • Sierra 18-0403 Intake Gasket Kit
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        Sierra 18-0403 Intake Gasket Kit

        $123.29
        $88.69

        Sierra 18-0403 Intake Gasket Kit - Special Order est. 10 Days Interchangeable with: Mallory 9-61217 Mercruiser Stern Drive 27-52571 27-61782 27-805722A1 27-812712  

      • Sierra 18-2553-9 Thermostat Cover Gasket (Priced Per Pkg Of 2)
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        Sierra 18-2553-9 Thermostat Cover Gasket (Pkg Of 2)

        $6.39
        $5.39

        Sierra 18-2553-9 Thermostat Cover Gasket for Mercruiser Stern Drives (Pkg Of 2) Sierra replacement Mercruiser thermostat cover gasket. Fits: MCM/MIE GM V-6 & V-8 engines w/older style 2 piece...

      • Sierra 18-0672-9 Exhaust Elbow Gasket (Priced Per Pkg Of 2)
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        Sierra 18-0672-9 Exhaust Elbow Gasket (Pkg Of 2)

        $34.29
        $26.79

        Sierra 18-0672-9 Exhaust Elbow Gasket (Priced Per Pkg Of 2) Sierra replacement exhaust elbow gasket for Mercruiser Stern Drives. Fits: GM V-6 & V-8 with center rise outlet exhaust manifold For:...

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        Sierra 18-1210 End Cap To Manifold Gasket
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        Sierra 18-1210 End Cap To Manifold Gasket

        $0.70
        $0.47

        Sierra 18-1210 End Cap To Manifold Gasket Sierra high-quality engine parts are designed to meet OEM specifications. Fits MCM 120 & 160 Interchangeable...

      • Sierra 18-0404 Intake Gasket Kit
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        Sierra 18-0404 Intake Gasket Kit

        $110.89
        $86.49

        Sierra 18-0404 Intake Gasket Kit Sierra replacement intake gasket kit for use on Mercruiser engines: MCM/MIE 454 Mag MPI, 502 Mag MPI, 7.4L/LX MPI & 8.2L MPI (1993 & newer). Interchangeable...

      • Sierra 18-2554-9 Thermostat Cover Gasket (Pkg Of 2)
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        Sierra 18-2554-9 Thermostat Cover Gasket (Pkg Of 2)

        $16.59
        $14.09

        Sierra 18-2554-9 Mercruiser Thermostat Cover Gasket (Pkg Of 2) Sierra replacement thermostat cover gasket for Mercruiser Stern Drives. Fits: MCM/MIE GM V-6 & V-8 engines Package of...

      • Sierra 18-43015 Mercruiser Thermostat
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        Sierra 18-43015 Thermostat

        $32.49
        $25.29

        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...

      • Sierra 18-2007 Oil Seal Replaces 26-94038
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        Sierra 18-2007 Oil Seal Replaces 26-94038

        $16.99
        $12.19

        Sierra 18-2007 Oil Seal Sierra high quality aftermarket parts are manufactured to meet or exceed OEM requirements. O.D.: 1.500" Shaft Size: 1.000" Width: 0.312" Interchangeable...

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

        $4.79
        $4.19

        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...

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        Sierra 18-3567 Rubber Valve
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        Sierra 18-3567 Rubber Valve

        $0.85
        $0.57

        Sierra 18-3567 Rubber Valve (V6 Crossflow) Sierra replacement rubber valve for Johnson/Evinrude V6 Crossflow. Sierra replacement engine parts are manufactured to meet or exceed OEM requirements...

      • Sierra 18-0360 Carb Mounting Gasket
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        Sierra 18-0360 Carb Mounting Gasket

        $5.89
        $4.99

        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...

      • Mercury - Mercruiser 75692Q03 Thermostat
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        Mercury - Mercruiser 75692Q03 Thermostat

        $30.59
        $25.49

        Mercury - Mercruiser 75692Q03 Thermostat  Genuine OEM Mercury-Mercruiser part. - Minimum Order Quantity 2.Special Order Item: This product is ordered specifically for your application. To help...

      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.

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