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      Mercruiser Cooling System Product Listings

      • Mercury - Mercruiser 861188A1 Hsg Asy-Thermosta
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        $267.49
        $234.99

        Mercury - Mercruiser 861188A1 Hsg Asy-Thermosta Genuine OEM Mercury-Mercruiser part. Special Order Mercury Marine Information: Additional Handling Time: Item transfers from an alternate warehouse...

      • Mercury - Mercruiser 8M0056956 Impeller
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        $315.99
        $277.99

        Mercury - Mercruiser 8M0056956 Impeller Genuine OEM Mercury-Mercruiser part. Application: CMD QSD 4.2 ES 350 - [88417000 Through 88419999] CMD QSD 4.2 EI 320 - [88405000 Through 88416999] CMD QSD 4...

      • Mercury - Mercruiser 8M0106368 Impeller
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        $89.99
        $79.49

        Mercury - Mercruiser 8M0106368 Impeller Genuine OEM Mercury-Mercruiser part. Application: Sterndrive - 6.7L 135 NA - [ALL & Up] Inboard and TowSports - 6.7L 135 NA - [ALL & Up] Sterndrive - 6.7L 150...

      • Quicksilver 2002 & Newer MerCruiser 4.3L Dry Joint Exhaust Manifold Kit
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        $2,336.02
        $1,946.68

        Quicksilver 2002 & Newer MerCruiser 4.3L Dry Joint Exhaust Manifold Kit Boat exhaust manifolds are an important part of your boat and maintaining, repairing, or replacing these parts is important to...

      • Quicksilver 57-96834Q Mercruiser V-Belt - 50" Length
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        $47.49
        $41.99

        Quicksilver 57-96834Q Mercruiser V-Belt - 50" Length Genuine OEM Mercury-Mercruiser part. Replacement v-belt for Mercruiser sterndrives. Length: 50" (1270 mm) Application: 330 (1982 - 1987) - s/n...

      • Quicksilver 8637251 Gasket Image
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        $16.79
        $13.99

        Quicksilver 8637251 Gasket Exhaust elbow gasket 8637251 is designed for closed cooling systems on select MerCruiser V6 and V8 sterndrive and inboard engines made by General Motors with center rise...

      • Quicksilver OEM MerCruiser V8 1981-2002 GM Exhaust Manifold - 807078T10
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        $679.19
        $565.99

        Quicksilver OEM MerCruiser V8 1981-2002 GM Exhaust Manifold - 807078T10 This genuine OEM part is designed for use with MerCruiser V8 GM engines made between 1981 and 2002. This hot dipped manifold...

      • Sierra 18-0422 Distributor Cap Gasket
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        $2.19
        $2.09

        Sierra 18-0422 Distributor Cap Gasket - Special Order est. 10 Days Interchangeable with: GLM 32040 Mercruiser Stern Drive 391-5076 391-6389

      • Sierra 18-2834-9 Thermostat Cover Gasket (Priced Per Pkg Of 2)
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        $9.99
        $7.49

        Sierra 18-2834-9 Thermostat Cover Gasket (Pkg Of 2) Sierra replacement thermostat cover gasket for Mercruiser Stern Drives. Fits: MCM/MIE Ford V-8 engines Package of 2 Interchangeable...

      • Sierra 18-2919-9 Water Pump Gasket (Priced Per Pkg Of 2)
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        $6.79
        $6.59

        Sierra 18-2919-9 Water Pump Gasket (Pkg Of 2) Sierra replacement water pump gasket for Mercury and Mercruiser engines. Package of 2 Interchangeable...

      • Sierra 18-8530 Mercruiser Exhaust Elbow Mounting Kit
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        $31.79
        $22.89

        Sierra 18-8530 Mercruiser Exhaust Elbow Mounting Kit Sierra replacement exhaust elbow mounting gasket for Mercruiser engines. For: Mercruiser 4 cyl. 224 cu. in. 3.7L (models 165, 170, 180 &...

      • Sierra 18-8551 Hardware Kit [Exhaust Elbow Bolts]
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        $33.49
        $24.09

        Sierra 18-8551 Hardware Kit [Exhaust Elbow Bolts] Sierra exhaust elbow hardware kit for Mercruiser Stern Drives. Contains: Two bolts and two washers Use with: Sierra 18-1975-1...

      Mercruiser OEM Engine Parts Finder

      MerCruiser Cooling Systems

      The cooling system of your MerCruiser engine keeps it from overheating and ensures that it’s operating at its best. It’s important to keep the entire cooling system updated and maintained, since its health is at the forefront of your engine’s overall performance. If you need parts for your MerCruiser cooling system, simply call Wholesale Marine. We will always have just what you need.

      Keep it Cool with MerCruiser Cooling Systems

      A boat’s engine, such as your MerCruiser sterndrive or inboard engine, is a delicate piece of machinery full of moving parts that each need special attention. In times past, a boat's engine was simply cooled by pulling raw water straight out of the source the vessel was floating in, running that through the engine, and out the other end. This left an engine with several issues, such as saltwater corrosion, large debris, and lack of efficiency. Further still, this sort of cooling system once upon a time only ran at 145 to 150 degrees, as regulated by a thermostat, to avoid saltwater crystallization. This is an issue due to a number of reasons, one of which was the amount of build-up that would occur at such cool temperatures.

      Today, we have engines full of checks and balances to get our MerCruiser sterndrive or inboard at max power without overheating. And Wholesale Marine has everything you need to run preventative maintenance on your vessel and to upgrade your older parts. Water pumps, impellers, thermostats, gaskets, circulation pumps, shutter and exhaust tubes, exhaust manifolds, hoses, belts, and more are all here to fit MerCruiser cooling systems. Ready to get started? Check out our easy-to-use Parts Selection tool to quickly get you exactly what you are searching for. We stock OEM and aftermarket Mercury outboard parts and Mercury sterndrive parts for less!

      For keeping that sterndrive, inboard, or tow sport engine cool come rain or shine, you can depend on Wholesale Marine to provide high quality Mercury outboard parts and Mercury sterndrive parts from the top brands in the industry. Our same day shipping, free shipping on orders over $99, and price match guarantees give you quality parts in a timely and economical manner. Review our selection today and give us a call with your questions at (877) 388-2628. Be sure to ask about our Wholesale Rewards Program for additional discounts on everything you need to keep your boat in top shape for your next adventure!