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      Mercruiser Cooling System Product Listings

      • Sierra 18-2919 Water Pump Gasket
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        $0.96
        $0.94

        Sierra 18-2919 Water Pump Gasket Interchangeable with: GLM 31050 Mallory 9-60031 Mercruiser Stern Drive 27-426311 Mercury Marine 27-42631 27-426311

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        Sierra 18-3567 Rubber Valve
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        $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. Interchangeable with: GLM 46140 Johnson/Evinrude...

      • Sierra 18-5520 V-8 Electronic Distributor Conversion Kit
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        $1,009.19
        $726.59

        Sierra 18-5520 V-8 Electronic Distributor Conversion Kit Converts 8 cyl. GM engines to electronic. Contains: (1) 18-5435 Ignition Coil (1) 18-8803-2 Spark Plug Wire Set (1) 18-5494-2 Dist. Chev V8 Electric Ign

      • Sierra 18-70947 Molded Hose
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        $15.69
        $12.19

        Sierra 18-70947 Molded Hose Sierra replacement molded hose for Mercruiser Stern Drives.  For: Thermostat housing to starboard manifold with 2 piece exhaust manifold Fits: 4.3L (Gen+) (1998-07) (S/N 0L619000 & UP), 4.3L EFI (Gen+) (2000-01),...

      • Sierra 18-70951 Molded Hose
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        $32.49
        $25.29

        Molded Hose - Special Order est. 10 Days

      • Mercruiser 15995 Water Temperature Sender
        $90.99
        $79.99

        Mercruiser 15995 Water Temperature Sender Genuine OEM Mercruiser part. Used for temperature gauge. Fits: MCM 3.7L engines .Special Order Item: This product is ordered specifically for your application. To help ensure proper fitment, please...

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      • Mercury - Mercruiser 30-72961 Water Pump Ball Bearing
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        $23.99
        $20.99

        Mercury-MerCruiser 30-72961 Water Pump Ball Bearing The Mercury-MerCruiser 30-72961 Water Pump Ball Bearing is a genuine OEM replacement bearing for select Mercury and MerCruiser engine applications. This bearing is used as a replacement crankcase and...

      • Mercury - Mercruiser 46-821351A-3 Water Pump Kit
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        $116.99
        $97.49

        Mercury - Mercruiser 46-821351A-3 Water Pump KitSpecial Order Quicksilver Information: Additional Handling Time: Item transfers from an alternate warehouse requires an additional 1–3 business days to ship. Non Returnable: This item is ordered...

      • Quicksilver 865615Q02 serpentine belt 2285mm for MerCruiser 8.1S and 496 Magnum engines marine engine belt image
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        $93.59
        $77.99

        Quicksilver 865615Q02 Serpentine Belt 2,285mm - MerCruiser 8.1S & 496 Magnum Engines Serpentine belt 865615Q02 is 2,285mm long to fit MerCruiser 8.1S engines (2001-2004 with serial No. 0M025000-0W389999) and MerCruiser 496 Magnum engines (2001-2005...

      • Sierra 18-15405 V-Belt Replaces 57-76269Q
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        $9.49
        $6.99

        V-belt for OMC, Volvo and Mercruiser Engines - Effective Length 40 1/2", Top Width 29/64" Replaces: Mercury 57-76269Q, 57-76269 Volvo 978515 OMC 0509307 Details: High strength synthetic cords resist shockload failure. Their low...

      • Sierra 18-70927 Molded Hose
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        $34.49
        $27.99

        Molded Hose - Special Order est. 10 Days

      • Mercury - Mercruiser 46-72774A89 Body/Impeller Kit
        $193.99
        $170.49

        Mercury - Mercruiser 46-72774A89 Body/Impeller Kit Genuine OEM Mercury-Mercruiser part. Special Order Item: This product is ordered specifically for your application. To help ensure proper fitment, please confirm compatibility with your engine model...

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      • Mercury - Mercruiser 47-59362A-4 Impeller Kit
        $64.49
        $56.99

        Mercury - Mercruiser 47-59362A-4 Impeller Kit Genuine OEM Mercury-Mercruiser part. Application: 7.4L TBI MIE (LH) GEN. VI GM 454 V-8 - 1996-1997 [0F874815 Through 0K999999] 7.4L TBI MIE MPI (LH) GEN. VI GM 454 V-8 - 1996-1997 [0F820104...

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      • Mercury - Mercruiser 57-8M0175082 Serpentine Belt/Pulley Kit
        $198.49
        $174.99

        Mercury - Mercruiser 57-8M0175082 Serpentine Belt/Pulley Kit Genuine OEM Mercury-Mercruiser part. Replacement serpentine belt for Mercruiser Sterndrives. Fits: 4.32L (GEN +) (2 BBL.) GM 262 V-6 - 1998 - s/n 0L010044 thru 0M614999 5.0L (2 BBL.) GM 305...

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      • Mercury - Mercruiser 8M0108355 Hose 57in.
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        $53.99
        $44.99

        Mercury - Mercruiser 8M0108355 Hose 57in. Genuine OEM Mercury/Mercruiser part. Special Order Item.Special Order Quicksilver Information: Additional Handling Time: Item transfers from an alternate warehouse requires an additional 1–3 business days...

      • Sierra 18-3220 Water Tube
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        $6.79
        $5.99

        Sierra 18-3220 Mercruiser Water Tube Sierra replacement water tube for Mercruiser Stern Drives. For: #1 - R/MR/Alpha Interchangeable with: GLM 12202 Mallory 9-78140 Mercruiser Stern Drive 32-54236

      • Mercury - Mercruiser 32-8M0108349 Hose 70 In.
        $64.99
        $56.99

        Mercury - Mercruiser 32-8M0108349 Hose 70 In. Genuine OEM Mercury-Mercruiser part.Special Order Item: This product is ordered specifically for your application. To help ensure proper fitment, please confirm compatibility with your engine model using our...

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      • Mercury - Mercruiser 47-8M0067063 Impeller
        $145.49
        $127.99

        Mercury - Mercruiser 47-8M0067063 Impeller Genuine OEM Mercury-Mercruiser part. Special Order Mercury Marine Information: Additional Handling Time: Item transfers from an alternate warehouse requires an additional 1–3 business days to ship. Non...

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      • Quicksilver 8M0220622 Serpentine Belt for MerCruiser 4.5L and 6.2L MPI Sterndrive and Inboard Engines
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        $65.49
        $57.99

        Quicksilver 8M0220622 - Serpentine belt for MerCruiser 4.5L & 6.2L MPI engines Quicksilver serpentine belt 8M0220622 fits MCM 4.5L Alpha & Bravo and 6.2L MPI (serial No. 2A456613 and up) engines with closed cooling. Key Product Features Fits MCM...

      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!