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guidebook

Parts Selection Guide

Find the parts you need

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Prop Selection Guide

Find the right prop for your boat

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Mercruiser Water Pumps & Impellers

Mercruiser Water Pumps & Impellers
Mercruiser Thermostats & Gaskets

Mercruiser Thermostats & Gaskets
Mercruiser Water Circulating Pumps

Mercruiser Water Circulating Pumps
Mercruiser Water Shutter & Exhaust Tubes

Mercruiser Water Shutter & Exhaust Tubes
Mercruiser Exhaust Manifolds

Mercruiser Exhaust Manifolds
Mercruiser Hoses

Mercruiser Hoses
Mercruiser Serpentine Belts

Mercruiser Serpentine Belts
Mercruiser V-Belts

Mercruiser V-Belts
Mercruiser Thermostat Housing

Mercruiser Thermostat Housing

      Mercruiser Cooling System

      • Sierra 18-3567 Rubber Valve
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        Sierra 18-3567 Rubber Valve

        $1.49

        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...

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      • Sierra 18-70928 Molded Hose
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        Sierra 18-70928 Molded Hose

        $50.99
        $35.99

        Sierra 18-70928 Mercruiser Molded Hose Sierra replacement molded hose for Mercruiser Stern Drives. For thermostat housing to oil cooler. Fits MCM/MIE GM V-8 (305 & 350 cid) engines. Interchangeable with: Mercruiser Stern...

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      • EMP 26-01800-B Mercury MerCruiser Water Pump Kit
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        EMP 26-01800-B Mercury MerCruiser Water Pump Kit

        $57.59
        $47.99

        EMP 26-01800-B Mercury MerCruiser Water Pump Kit This complete water pump kit is intended for use on Mercury & MerCruiser engines and meets all OEM requirements. Complete Water Pump & Seal Kit Application: For Mercury Mariner 1988-2006 V6...

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      • EMP 47-01814 Mercury Mariner Impeller
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        EMP 47-01814 Mercury Mariner Impeller

        $22.07
        $18.39

        EMP 47-01814 Mercury Mariner Impeller This impeller is intended for use on Mercury Mariner, Honda, and Force engines and meets all OEM requirements. Specification: ID: 22.4mm OD: 89mm W: 32.5mm 6 Blades Uses Key 28-32833 Impeller...

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      • EMP 75-03222 MerCruiser Thermostat Kit
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        EMP 75-03222 MerCruiser Thermostat Kit

        $34.55
        $28.79

        EMP 75-03222 MerCruiser Thermostat Kit This 160° Thermostat Kit is intended for use on MerCruiser engines and meets all OEM requirements. Thermostat Kit Application: For 1983 & later GM engines with standard cooling...

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      • Sierra 18-0672-9 Exhaust Elbow Gasket (Priced Per Pkg Of 2)
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        Sierra 18-0672-9 Exhaust Elbow Gasket (Pkg Of 2)

        $29.49
        $22.49

        Sierra 18-0672-9 Exhaust Elbow Gasket (Priced Per Pkg Of 2) Sierra replacement exhaust elbow gasket for Mercruiser Stern Drives. Fits: GM V-6 & V-8 with center rise outlet exhaust manifold For: Closed cooling Interchangeable...

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      • Sierra 18-15405 V-Belt Replaces 57-76269Q
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        Sierra 18-15405 V-Belt Replaces 57-76269Q

        $8.99
        $6.49

        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...

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      • Sierra 18-1954-1 Manifold
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        Sierra 18-1954-1 Manifold

        $826.49
        $578.49

        Sierra 18-1954-1 Manifold Supplied with mounting package Use With: Exhaust Manifold Mounting Gasket: 18-1204 Manifold End Plate: 18-4009 Elbow: 18-1971,18-1972, and 18-1978 Riser with Exhaust Tube: 18-1975-1 Manifold End Cap Gasket:...

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      • Sierra 18-1955-1 Manifold
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        Sierra 18-1955-1 Manifold

        $750.99
        $525.99

        Sierra Manifold (New Style)  Special Order est. 10 Days For use with Mercruiser I/O Fits most early Model 3.0 181 CID with Rochester Carb. 5 bolt pattern and 2.5 L, 153CID (1968-82) Use with:  Exhaust Manifold Gasket:  18-1203 & End...

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      • Sierra 18-1958-1 Manifold
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        Sierra 18-1958-1 Manifold

        $450.99
        $315.99

        Sierra 18-1958-1 Mercruiser Manifold Sierra high-quality engine parts are designed to meet OEM specifications. This Mercruiser manifold is supplied with mounting package. Fits MCM/MIE Ford V-8 Engines (1977 & older) Interchangeable...

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      • Sierra 18-7311 Hose Clamp 3/4"-1-3/4"
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        Sierra 18-7311 Hose Clamp 3/4"-1-3/4"

        $4.73
        $2.93

        Sierra 18-7311 Stainless Steel Hose Clamp 3/4" - 1-3/4" Manufactured from marine grade 316 stainless steel Designed to fit many applications from 5/16" to 7" diameter hoses Diameter Size: 3/4" to 1-3/4" Std. No.: 020 Interchangeable...

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      • EMP 47-09201 MerCruiser Impeller Kit
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        EMP 47-09201 MerCruiser Impeller Kit

        $32.63
        $27.19

        EMP 47-09201 MerCruiser Impeller Kit This impeller Kit is intended for use on MerCruiser engines and meets all OEM requirements. Specifications: Double Flat Drive Hub 8 Blades ID: 11.4mm OD: 66.5mm W: 50.6mm Impeller Kit Application: For...

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      Mercruiser OEM Engine Parts Finder

      Mercruiser Cooling System

      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, Wholesale Marine has all you need.

      We are Keeping it Cool!

      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 boats 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 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. Now we have engines full of checks and balances to get our Mercruiser sterndrive or inboard at max power without overheating. We have everything you need to run preventative maintenance on your vessel and to upgrade your older parts. Water pumps, impellers, thermostats, gaskets, circulation pumps, shutter & exhaust tubes, exhaust manifolds, hoses, belts, and more are all here to fit your Mercruiser cooling system. Ready to get started? Check out our easy-to-use Parts Selection tool to quickly get you exactly what you are searching for.

      For keeping that sterndrive, inboard, or tow sport engine cool come rain or shine, you can depend on Wholesale Marine to provide high quality 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. Peruse our selection today and give us a call with your questions at (877) 388-2628.