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      Product Listing

      • Quicksilver 47-85089Q-4 Water Pump Repair Kit Image
        $50.99
        $42.49

        Quicksilver 47-85089Q-4 Water Pump Repair Kit This kit fits 15-25hp 2-stroke Mercury and Mariner outboards. See your owner’s manual for replacement schedule and installation instructions. Application: Fits various 15 thru 25 hp 2 cycle...

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      • Sierra 18-4009 Manifold End Plate Replaces 60252A2
        $83.99
        $58.99

        Sierra 18-4009 Manifold End Plate for Mercruiser & OMC Sterndrives Sierra high-quality engine parts are designed to meet OEM specifications. For Use With: 18-1950-1 Manifold 18-1951-1 Manifold 18-1958-1 Manifold 18-1960-1 Manifold 18-1962-1...

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      • Sierra 18-1977-1 MerCruiser V6/V8 Thermostat Housing
        $88.49
        $61.99

        Sierra 18-1977-1 Mercruiser Thermostat Housing Sierra high-quality engine parts are designed to meet OEM specifications. Fits MCM/MIE GM V-6 & V-8 (305 & 350 cid) engines & Hi-Perf 454, 502 & 540 cid engines. Interchangeable...

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      • Sierra 18-2759 Exhaust Tube Replaces 53114A1
        $70.99
        $49.99

        Sierra 18-2759 Mercruiser Exhaust Tube Sierra high-quality engine parts are designed to meet OEM specifications. This Tube fits MCM 120 & 140: 160 & 165 (in-line 6 cyl.) Interchangeable with: GLM 89060 Mallory 9-72807 Mercruiser...

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      • Thermostat Sleeve, Mercury - Mercruiser 23-47508T
        $25.99
        $16.49

        Quicksilver 47508T Thermostat Sleeve The Quicksilver 47508T brass thermostat sleeve is a direct-fit replacement for early-design MerCruiser V6 and V8 sterndrive and inboard engines (1995 & older) with two-piece thermostat housings. Manufactured to...

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      • Sierra 18-15290 V-Belt Replaces 57-13457Q
        $23.49
        $15.27

        Sierra 18-15290 Mercruiser Water Pump V-Belt Sierra high-quality engine parts are designed to meet OEM specifications. Sierra V-Belts are designed to meet or exceed OEM requirements. Their low stretch properties assure uniform performance over the...

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      • Sierra 18-3667 Thermostat Kit
        $30.99
        $21.99

        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 18-3584-1 Circulating Water Pump
        $248.99
        $173.99

        Sierra 18-3584-1 Circulating Water Pump Sierra 18-3584-1 is a replacement Circulating Water Pump for use in Ford V-8 engines. Like all Sierra aftermarket parts, this pump is manufactured to meet or exceed all OEM requirements. Interchangeable...

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      • Sierra 18-0721 Open Elbow Gasket
        $87.49
        $61.49

        Sierra 18-0721 Mercruiser Open Exhaust Elbow Gasket Sierra high-quality engine parts are designed to meet OEM specifications. Sierra Mercruiser dry joint open riser gasket. This full flow gasket offers standard cooling Fits: MerCruiser Dry Joint...

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      • Shutter Asy-Water, Mercury - Mercruiser 807166A-2
        $103.19
        $85.99

        Quicksilver 807166A2 Exhaust Water Shutter Kit For MerCruiser 4.3L Engines With 1-Piece Exhaust Manifolds Quicksilver 807166A2 Exhaust water shutter kit for MerCruiser 4.3L sterndrive engines with 1-piece exhaust manifolds. Designed for Y-pipes with a 2...

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      • Quicksilver 807252Q4 Thermostat Kit Thumbnail Image
        $58.79
        $48.99

        Quicksilver 807252Q4 Thermostat Kit The Quicksilver 807252Q4 is a 140°F thermostat designed for GM-based MerCruiser V6 and V8 sterndrive and inboard engines (1983–2016) with standard cooling systems. This thermostat is not intended for...

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      • Sierra 18-15370 V-Belt
        $29.49
        $19.25

        Sierra 18-15370 Power Steering V-BELT for Mercruiser & OMC High strength synthetic cords resist shockload failure. Their low stretch properties assure uniform performance over the life of the belt.  The compression section is a special...

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      • Sierra 18-32888 Water Pump Repair Kit
        $144.99
        $101.49

        Sierra 18-32888 Water Pump Repair Kit The Sierra 18-32888 Water Pump Repair Kit fits 350 MAG MPI, 4.3L MPI, 496 MAG, 5.0L MPI, 5.7L MPI, 6.2L MPI, 8.1L MAG. Fits Mercruiser using brass seawater pump 46-862914A13 (18-3160-1). Contains: (1) 18-3016-1...

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      • Sierra 18-15103 Serpentine Belt Replaces 57-865615Q07
        $116.49
        $88.49

        Sierra 18-15103 Mercruiser Serpentine Belt Sierra high-quality engine parts are designed to meet OEM specifications. For Mercruiser V8 Engines. Length: 96.75" Width: 13/16" Interchangeable with: Mercruiser Stern Drive 57-863876...

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      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 Captain’s Club Rewards Program for additional discounts on everything you need to keep your boat in top shape for your next adventure!