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Mercruiser Thermostats & Gaskets

8187
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Parts Selection Guide

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Prop Selection Guide

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      • Sierra 18-3551  Marine Thermostat
        List Price: $15.99
        Starting At: $10.99

        Sierra 18-3551 142 Degree Thermostat for Mercruiser, Crusader,PCM Sierra high-quality engine parts are designed to meet OEM specifications. For Use On Ford 302/351 CID Engines, and used on all V-8 Chrysler engines with Rochester carburetors 1986-present...

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      • Sierra 18-3650 Thermostat Kit
        List Price: $24.49
        Starting At: $16.99

        Sierra 18-3650 Mercruiser 140 Degree Thermostat Kit  For Mercruiser Sterndrive engines using 140 degree thermostat. Fits 1998 & older MCM GM In-Line 4 & 6 cylinder engines. Kit Includes: (1) 18-2831 Thermostat Gasket (1) 18-3550...

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      • Sierra 18-3649 Thermostat Replaces 8M0091470
        List Price: $26.99
        Starting At: $18.99

        160 Degree Thermostat for Mercruiser & Crusader Use With: Thermostat Gasket 18-2917 Replaces: Mercury - 807252T2 Mercruiser - 8M0091470, 807252T2, 8072522, 8052732, 8M0109441 Crusader - 97895 Mallory - 9-43002 GLM - 13100 Pro Marine - 64252-2...

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      • Sierra 18-3646 Thermostat Kit Replaces 807252Q3
        List Price: $29.99
        Starting At: $20.99

        Sierra 18-3646 Mercruiser 140 Degree Thermostat Kit Sierra high-quality replacement engine parts are designed for OEM specifications. For 1982 & older Ford & GM V-8 engines with standard cooling and 1996 & older hi-performance models. Fits...

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      • Sierra 18-3667 Thermostat Kit
        List Price: $23.99
        Starting At: $16.99

        Thermostat Kit for Mercruiser Engines 160 degree Includes thermostat (18-2555) and gasket (18-3555) Replaces: OEM 27-89656-1 (Gasket) and 99155A-1 (Thermostat)

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      • Sierra 18-3557 Thermostat Replaces 47594
        List Price: $26.49
        Starting At: $21.49

        Sierra 18-3557 Thermostat Sierra replacement 143° thermostat for Chrysler/Force/US Marine, Johnson/Evinrude Outboards, Mercrusier Stern Drives, and Volvo Penta engines. Fits MCM GM in-line 6 cylinder Use with: 18-3669 Thermostat...

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      • Sierra 18-3555 Thermostat Replaces 99155T2
        List Price: $20.49
        Starting At: $14.49

        Sierra 18-3555 Mercruiser 160 Degree Thermostat Sierra replacement thermostat for Mercruiser Stern Drives Temperature Rating: 160°F Fits 1998 & newer GM V-6 & V-8 engines with closed cooling Use with: 18-3568 Thermostat...

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      • Sierra 18-3567 Rubber Valve
        List Price: $5.49
        Starting At: $4.99

        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. Interchangeable with: GLM 46140 Johnson/Evinrude...

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