7439

      Mercruiser Cooling System Product Listings

      • Quicksilver 807252Q-3 Thermostat Kit - 140 Degree Image
        Quick view
        $37.19
        $30.99

        Quicksilver 807252Q-3 140 Degree Thermostat Kit - Mercury - Mercruiser  Quicksilver 807252Q3 Thermostat Kit is designed for select older Ford and GM V8 MerCruiser sterndrive and inboard engines with...

      • Sierra 18-15103 Serpentine Belt Replaces 57-865615Q07
        Quick view
        $124.79
        $97.29

        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...

      • Sierra 18-1975-1 MerCruiser 2.5L/3.0L 1982 & Newer Exhaust Elbow w/Tube Replaces 12076A2
        Quick view
        $387.19
        $278.79

        Sierra 18-1975-1 MerCruiser 2.5L/3.0L 1982 & Newer Exhaust Elbow w/Tube Replaces 12076A2 This Sierra aftermarket exhaust elbow is for MerCruiser 2.5L/3.0L engines 1982 and newer. Fits: MCM 2.5L...

      • Sierra 18-70939 Exhaust Manifold Molded Hose
        Quick view
        $55.39
        $39.89

        Sierra 18-70939 Mercruiser Exhaust Manifold Molded Hose Sierra high-quality replacement exhaust manifold molded hose for connecting thermostat housing to starboard exhaust manifold. Fits MCM/MIE...

      • Sierra 18-710-12-2 Hose Clamp 11/16" - 1-1/4"
        Quick view
        $4.59
        $3.89

        Sierra 18-710-12-2 Hose Clamp 11/16" - 1-1/4" Diameter Size: 11/16" to 1 1/4" Std #: 012 Material: Marine Grade 316 stainless steel Sold individually Interchangeable with: Mercruiser...

      • Quicksilver 805218T Coolant Temp Sensor Thumbnail Image
        Quick view
        $83.39
        $69.49

        Quicksilver 805218T MCM/MIE EFI Coolant Temperature Sensor Assy Quicksilver 805218T Engine Coolant Temperature Gauge Sender is designed for select MerCruiser EFI sterndrive and inboard engine...

      • Sierra 18-15490 V-Belt
        Quick view
        $65.29
        $46.99

        Sierra 18-15490 Mercruiser V-Belt Sierra replacement V-Belt for use on Mercruiser Stern Drives. High strength synthetic cords resist shockload failure. Their low stretch properties...

      • Sierra 18-710-48-2 Hose Clamp 2-9/16"-3-1/2"
        Quick view
        $5.39
        $4.59

        Sierra 18-710-48-2 Hose Clamp 2-9/16"-3-1/2" Manufactured from Marine Grade 316 Stainless Steel. s/s from Sierra part 18-7314 Diameter Size: 2-9/16" to 3-1/2" Std #: 048 Interchangeable with: ...

      • Quicksilver 57-865615Q03 Serpentine Belt Thumbnail Image
        Quick view
        $168.59
        $140.49

        Quicksilver 57-865615Q03 Serpentine Belt Quicksilver 865615Q03 Serpentine Belt is a direct replacement belt for select 2001-2016 MerCruiser Alpha and Bravo engines. Measuring 2,704 mm in length,...

      • Sierra 18-3557 Thermostat Replaces 47594
        Quick view
        $38.79
        $32.19

        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...

      • Sierra 18-1508 Thermostat Seal
        Quick view
        $1.19
        $0.97

        Sierra 18-1508 MerCruiser Thermostat Seal Replaces 25-8071341 This Sierra aftermarket thermostat seal is for use with MerCruiser V6/V8 GM engines that feature closed cooling. Application...

      • Cooler to Thermostat Housing Hose, V-6 & V-8 Mercury - Mercruiser 32-88794
        Quick view
        $38.99
        $33.99

        Cooler to Thermostat Housing Hose, V-6 & V-8 Mercury - Mercruiser 32-88794 1 1/4 in. I.D. Fits MCM/MIE V-6 and V-8 (305 & 350 cid) engines Replaces: Mallory 9-44086

      • Sierra 18-1908K Manifold Riser Spacer Kit Replaces 93320A13
        Quick view
        $553.59
        $398.59

        Sierra 18-1908K Manifold Riser Spacer Kit Features:  Packaged as a set, complete with mounting hardware Fits: MCM V-6 carb & TBI eng. w/ 2 piece exhaust manifolds (s/n 0M614999 & below) 3"...

      • Sierra 18-1956-3 MerCruiser 2.5L/3.0L Exhaust Manifold
        Quick view
        $698.19
        $502.69

        Sierra 18-1956-3 MerCruiser 2.5L/3.0L Exhaust Manifold Replaces 860235A04 This sierra exhaust manifold features a one piece design and is for use with MerCruiser 2.5L/3.0L engines. Used...

      • Sierra 18-3555 Thermostat Replaces 99155T2
        Quick view
        $27.69
        $19.89

        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...

      • Transom to Oil Cooler Hose, GM V-8 Mercury - Mercruiser 32-96246A-4
        Quick view
        $73.99
        $64.99

        Mercury MerCruiser 32-96246A-4 Transom to Oil Cooler Hose The Mercury MerCruiser 32-96246A-4 Transom to Oil Cooler Hose is a replacement hose designed for select MCM GM V-8 marine engines. This hose...

      • Sierra 18-0885-1 Exhaust Elbow Gasket
        Quick view
        $10.99
        $7.99

        Sierra 18-0885-1 Exhaust Elbow Gasket For use on Mercruiser outboard engines Replaces:  27-48042 s/s from 18-0885

      • Sierra 18-15116 Serpentine Belt Replaces 57-861758Q
        Quick view
        $111.49
        $80.29

        Sierra 18-15116 Serpentine Belt Use with metal 5-3/4" dia. p/s pump pulley and engines with standard cooling. Sierra engine components are manufactured to meet or exceed OEM requirements. Length:...

      • Sierra 18-0164-9 Thermostat Housing Gasket (Priced Per Pkg Of 2)
        Quick view
        $4.69
        $3.69

        Sierra 18-0164-9 Thermostat Housing Gasket (Pkg Of 2) Sierra replacement thermostat housing gasket. Sold in Package of 2 each For Use on: OMC Sterndrive/Cobra 4 & 6 Cylinder Engines Yamaha...

      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!