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      Mercury Outboard Thermostats & Gaskets Product Listings

      • Sierra 18-3553 Thermostat Replaces 75692
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        Sierra 18-3553 Mercury 143° Thermostat

        $27.59
        $21.49

        Sierra 18-3553 Mercury Thermostat The Sierra 18-3553 Thermostat has a 143°F temperature rating. For use on Mercury Marine engines. Interchangeable...

      • Sierra 18-3569 Thermostat Kit Replaces 803061T1
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        Sierra 18-3569 Mercury 70-125HP 2 Cycle Thermostat Kit

        $35.39
        $25.49

        Sierra 18-3569 Mercury Thermostat Kit  Sierra replacement thermostat kits are designed to meet OEM specifications. This kit fits various Mercury/Mariner 70-125 HP 2 cycle outboards (1987 and newer)...

      • Sierra 18-0182-9 Thermostat Gasket
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        Sierra 18-0182-9 Thermostat Gasket 2 Pack

        $4.19
        $3.69

        Thermostat Gasket for Johnson Evinrude and Mercury by Sierra For Mercury Mariner, Johnson and Evinrude Outboards (Priced Per Pkg of 2) Replaces: Mercury - 27-62386001 OMC - 0310058 GLM -...

      • Sierra 18-3549 Thermostat Replaces 14586
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        Sierra 18-3549 Mercury Thermostat

        $31.29
        $22.49

        Sierra 18-3549 Thermostat for Mercury Sierra replacement thermostat for Mercury Marine engines. Temperature Rating: 120°F Use with: 18-3569 Thermostat Kit 18-43052 Thermostat...

      • Sierra 18-3606 Mercury 130° Thermostat Kit
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        Sierra 18-3606 Mercury 130° Thermostat Kit

        $196.19
        $152.99

        Sierra 18-3606 Mercury 130° Thermostat Kit Sierra high quality replacement engine parts are designed to meet OEM specifications. Temperature Rating: 130° F Kit Includes: (2) 18-3535...

      • Mercury - Mercruiser 27-863725-1 Gasket
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        Quicksilver OEM MerCruiser V6/V8 Exhaust Manifold Elbow Gasket

        $16.79
        $13.99

        Quicksilver OEM MerCruiser V6/V8 Exhaust Manifold Elbow Gasket 27-863725-1 This genuine OEM Mercruiser elbow gasket is for use with 5.0L, 5.7L, 7.4L, 8.2L GM engines with a center rise outlet...

      • Mercury - Mercruiser 27-802699002 Gasket
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        Quicksilver 27-802699002 Gasket

        $11.39
        $9.49

        Mercury - Mercruiser 27-802699002 Gasket Genuine OEM Mercury-Mercruiser part. Fits: 8 HP Carb (209cc) - [0R042475 & Up] 8 HP Carb (209cc) - [0P325500 & Up] 9.9 HP Carb (209cc) - [0R042475 & Up] 9.9...

      • Sierra 18-3675 Thermostat Cover Gasket
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        Sierra 18-3675 Mercury 200-250HP 3.0L Thermostat Cover Gasket

        $4.09
        $3.59

        Sierra 18-3675 Thermostat Cover Gasket Sierra replacement thermostat cover gasket for Mercury Marine engines. For: 200-250 Hp 3.0L, (DFI and EFI) Interchangeable with: Mercury...

      • Quicksilver 8M0090819 Thermostat Assy Image
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        Quicksilver 8M0090819 Thermostat Assy

        $99.59
        $82.99

        Quicksilver 8M0090819 Thermostat Assy Quicksilver 8M0090819 Thermostat Assembly is designed for select Mercury 75-115 HP 2.1L EFI FourStroke outboards. This 120°F thermostat helps regulate engine...

      • Sierra 18-0323 Thermostat Gasket Replaces 27-14318005
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        Sierra 18-0323 Thermostat Gasket Replaces 27-14318005

        $2.79
        $2.39

        Sierra 18-0323 Mercury Thermostat Gasket For Mercury Marine Outboard motors. Interchangeable with: GLM 32760 Mercury Marine 27-14318 3 27-14318 2 27-14318005 27-143184 27-14318

      • Sierra 18-0345 Water Pump Gasket
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        Sierra 18-0345 Water Pump Gasket

        $7.49
        $5.89

        Sierra 18-0345 Water Pump Gasket Sierra replacement water pump gasket for Mercury Marine, Chrysler/Force/US Marine engines. For Mercury 25-60 HP Outboards 2, 3 cyl & 4-Stroke...

      • Mercury - Mercruiser 807252T5 Thermostat Kit
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        Mercury 807252T5 Mercruiser GM 1987-2016 160° F Thermostat Kit

        $52.79
        $43.99

        Mercury-MerCruiser 807252T5 160°F Thermostat Kit The Mercury-MerCruiser 807252T5 Thermostat Kit is a genuine OEM 160°F thermostat kit for compatible MerCruiser sterndrive and inboard engines. This...

      • Mercury 8M0168892 Thermostat
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        Mercury - Mercruiser 8M0168892 Thermostat

        $36.59
        $30.49

        Mercury - Mercruiser 8M0168892 Thermostat Genuine OEM Mercury-Mercruiser part. 120 Degrees F Applications: 40/50/60HP Four Stroke 1C050252 and Above Special Order Mercury Marine...

      • Sierra 18-3605 Thermostat Kit
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        Sierra 18-3605 Mercury Thermostat Kit

        $117.99
        $84.99

        Sierra 18-3605 Mercury Thermostat Kit This Mercury Thermostat kit is designed for use on 225/250 HP EFI G129222-0T408999 For Use on Mercury/Mariner Outboard Engines Fits:  V-135 DFI (2.5L)(1998...

      • Sierra 18-3631 Mercury 135-300 Verado Thermostat With Housing
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        Sierra 18-3631 Mercury 135-300 Verado Thermostat With Housing

        $207.69
        $149.49

        Sierra 18-3631 Thermostat With Housing Sierra replacement thermostat for Mercury Marine engines. Includes thermostat and housing. Fits: 135-300 Verado Temperature Rating:...

      • Sierra 18-3633 Mercury Thermostat
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        Sierra 18-3633 Mercury Thermostat

        $86.79
        $71.99

        Sierra 18-3633 Mercury Thermostat - Replaces 8M0090819 Sierra replacement thermostat for Mercury Outboards. Fits: 75-115HP, 115 Pro XS (2B094996 & UP) Interchangeable with: Mercury...

      • EMP 75-00456 Mercury / BRP Thermostat Kit
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        EMP 75-00456 Mercury / BRP Thermostat Kit

        $24.95
        $20.79

        EMP 75-00456 Mercury / BRP Thermostat Kit This Thermostat Kit is intended for use on Mercury and BRP outboard engines and meets all OEM requirements. Thermostat Kit Application: For Mercury...

      • Sierra 18-0970 Fuel Pump Base Gasket
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        Sierra 18-0970 Fuel Pump Base Gasket

        $0.58
        $0.45

        Sierra 18-0970 Fuel Pump Base Gasket Sierra replacement fuel pump base gasket for use on Chrysler/Force/US Marine, Mercury Marine, and Mercury Sport Jet engines. Interchangeable...

      • Sierra 18-2509 Carb Mounting Gasket Replaces 27-67751
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        Sierra 18-2509 Carb Mounting Gasket Replaces 27-67751

        $1.99
        $1.59

        Sierra 18-2509 Mercury Carburetor Mounting Gasket Sierra high-quality engine parts are designed to meet OEM specifications. Interchangeable with: Mercury...

      Mercury OEM Engine Parts Finder

      Mercury Outboard Thermostats and Gaskets

      When it comes to your Mercury Outboard, thermostats are an important part for controlling the temperature of your engine. As the temperature rises, the thermostat opens and allows cooling water to flow through the outboard. Keep your outboard from overheating with our selection of Mercury Outboard thermostat kits, thermostats, and gaskets. We carry the Sierra aftermarket parts, all of which meet OEM specifications.

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