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Parts Selection Guide

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Prop Selection Guide

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      Johnson Outboard Thermostats & Gaskets

      • Sierra 18-3672 Thermostat Kit
        $30.99
        $21.99

        Sierra 18-3672 BRP & Mercury Thermostat Kit This 130° Thermostat Kit is intended for use on Mercury and Johnson/Evinrude engines and meets all OEM requirements. Kit Includes: 18-3553 (Thermostat) 18-0182 (Thermostat Gasket) Johnson...

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      • Sierra 18-3674 Thermostat Kit
        $42.49
        $29.99

        Sierra 18-3674 Thermostat Kit for Johnson & Evinrude Engines For Johnson and Evinrude V-6 Crossflow engines. Use With: Thermostat 18-3543 Includes: (1) 18-1219 Grommet Gasket (V6 Crossflow) (1) 18-0182 Thermostat Gasket (1) 18-3135...

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      • Sierra 18-3673 Thermostat Kit
        $53.49
        $37.49

        Sierra Thermostat Kit for Johnson and Evinrude V-4 Crossflow Outboard Engines Kit includes: Thermostats, Gaskets, Springs and Grommets   Applications: 80 HP Jet 1994-1995 85 HP 1978-1980 85 HP 1993-1995 88 HP 1987-1995 90 HP 1983-1995* 90 HP Jet...

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      • Sierra 18-3544 Thermostat Replaces 0435491
        $33.49
        $23.49

        Sierra 18-3544 Johnson & Evinrude Thermostat Sierra high-quality replacement thermostat for Johnson/Evinrude Outboards. Interchangeable with: Johnson/Evinrude Outboard 435491 437090 Mallory 9-43032 9-43036

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      • Sierra 18-3543 Thermostat Replaces 5005440
        $22.49
        $15.99

        Sierra 18-3543 Johnson,Evinrude Outboard Engine Thermostat Sierra high-quality engine parts are designed to meet OEM specifications.  Temperature Rating: 143 Interchangeable with: Johnson/Evinrude...

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      • Sierra 18-3545 Thermostat Replaces 0437090
        $25.99
        $18.49

        Sierra 18-3545 Johnson/Evinrude Thermostat Sierra high-quality engine parts are designed to meet OEM specifications. Temperature Rating: 130 Interchangeable with: Johnson/Evinrude Outboard 437090 Mallory 9-43031

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      • Sierra 18-3500 Thermostat
        $34.49
        $23.99

        Sierra 18-3500 Johnson/Evinrude Thermostat Sierra high-quality engine parts are designed to meet OEM specifications. Temperature Rating: 140 degrees Interchangeable with: GLM 13170 Johnson/Evinrude Outboard 394409 434137

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      • Johnson/Evinrude 0436195 Thermostat Assembly
        $18.99
        $17.49

        Johnson/Evinrude 0436195 Thermostat Assembly OEM BRP Thermostat T-Stat for Johnson and Evinrude Outboards. Fits: 1996-2006 9.9-15 HP Big Bore 1995-2005 40, 48, 50 HP 1993-2001 3 Cylinder HP 1993-2001 90 Degree V4 Interchangeable...

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      • Sierra 18-3669 Thermostat Kit
        $37.49
        $25.99

        Sierra 18-3669 Thermostat Kit for Johnson and Evinrude Outboards Sierra replacement engine parts are designed to meet OEM Specifications. Kit Contains: (1) 18-0929 Thermostat Gasket (1) 18-2548 Thermostat Cover Gasket (1) 18-3557...

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      • Sierra 18-1507 Thermostat Seal
        $6.49
        $4.49

        Sierra Thermostat Seal Special Order est. 10 Days For use on Johnson/Evinrude Outboard Engines For:  60 degree v-4 & v-6 Replaces:  335981

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      • Sierra 18-3557 Thermostat Replaces 47594
        $35.99
        $28.99

        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 18-2855 Shift Housing Gasket Replaces 0314082
        $1.99
        $1.49

        Sierra 18-2855 Shift Housing Gasket for Johnson, Evinrude Sierra high-quality engine parts are designed to meet OEM specifications. Interchangeable with: GLM 33420 Johnson/Evinrude Outboard 314082 314082 Mallory 9-60404  

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      Johnson OEM Engine Parts Finder

      Johnson Outboard Thermostats

      The boat thermostat is an often underappreciated component of every craft. This mechanism regulates engine temperature and ensures optimal performance. Boat engines run at max performance which can generate a lot of heat. Should the engine begin to overheat, thermostats provide the operator the first line of defense in preventing an expensive repair or possible replacement. In addition, the thermostat other assignment is to control emission levels so your boat stays regulation-compliant.

      Find the Parts Your Boating Life Needs

      Wholesale Marine carries dependable Johnson outboard thermostats, as well as all the replacement parts you need to keep your vessel running at the optimal performance: diaphragm gaskets, rubber valves, grommets, vernatherms, and all-inclusive kits can all be located online using our parts finder tool. All of our replacement Johnson outboard thermostats meet or exceed OEM specifications and are, of course, backed by a price match guarantee.

      At Wholesale Marine, we strive to be your number one trusted source for boat parts and supplies, so we take customer satisfaction seriously. Our customer service representatives are boat enthusiasts themselves and are ready to offer guidance on Johnson outboard thermostats. We are here Monday through Friday, from 9:00 AM until 6:00 PM, EST at (877) 388-2628 to assist. Through our Captain’s Loyalty Rewards program, free shipping on orders over $99, and same-day shipping, we are always looking to provide customers with an optimal shopping experience.