Mercruiser Water Pumps & Impellers

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Parts Selection Guide

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Prop Selection Guide

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      • Sierra 18-3214 Impeller Kit Replaces 47-8M0100526
        $30.49

        Sierra 18-3214 Impeller Kit for Mercury A boat impeller is a part that is primarily made from rubber, which projects as a series of vanes that are molded around a metal hub. The tips of these flexible vanes wear down over time through use or if the boat...

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      • Sierra 18-3320 Water Pump Kit
        $47.49

        Sierra 18-3320 Water Pump Kit Sierra replacement water pump kit for Mercruiser engines. Sierra high quality aftermarket parts are manufactured to meet or exceed OEM requirements. For MR/Alpha l Units S/N 6854393-0D469858 Includes: Water Pump...

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      • Sierra 18-3150 Water Pump Kit Replaces 46-807151A14
        $107.99

        Sierra 18-3150 Mercruiser Bravo Water Pump Kit The Sierra 18-3150 Water Pump Kit is for use on all Mercruiser Bravo and TRS Sterndrives and Inboard Marine engines. Can be used to replace the 2 piece housing sea water pump. Sierra aftermarket engine...

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      • Sierra 18-3017 Water Pump Impeller Replaces 47-89984T3
        $15.99

        Sierra 18-3017 Water Pump Impeller for Mercury Sierra replacement water pump impeller for Mercury and Mercruiser engines. This impeller fits MCM and outboard applications. All Sierra engine parts are manufactured to meet or exceed OEM requirements...

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      • Sierra 18-3217 Impeller Kit Replaces 46-96148A8
        $24.99

        Sierra 18-3217 Water Pump Repair Kit for Mercruiser, Mercury For #1 Units thru S/N D494568 (Similar to #46-96148A5 without base or housing) Used on Mercruiser Stern Drives and Mercury Outboards. This kit contains all the components needed to properly...

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      • Sierra 18-3517 Water Pump Kit Replaces 46-60367A1
        $37.99

        Sierra 18-3517 Water Pump Kit (Without Base) Sierra replacement water pump kit for Mercury and Mercruiser engines. Sierra high quality aftermarket parts are manufactured to meet or exceed OEM requirements. Fits: Mercury/Mariner 65 HP (4 cylinder)...

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      • Water Pump Kit, Mercury - Mercruiser 47-43026Q06
        $54.99

        Mercury - Mercruiser 47-8M0100526 Water Pump Kit Fits: 40/45/50/60 Fourstroke BigFoot 60 (3cyl) Bigfoot 75 - 125 (all 3 & 4 cylinder 0A996142 & above) 75, 90, 115 Fourstroke V-200/225/250 (3.0L) Mercruiser Alpha One Gen II...

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      • Mercruiser 47-59362T-1 Impeller 1999 & Older
        $36.99

        Mercruiser 47-59362T-1 Impeller 1999 & Older  Fits Mercruiser engines with engine mounted sea water pumps (1999 & Older) Replaces: GLM 89740 Mallory 9-45375 OMC 0775517 Redline RL3087 Sie-18-3087  

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      • Sierra 18-3056 Water Pump Impeller Replaces 47-43026T2
        $17.49

        Sierra 18-3056 Water Pump Impeller Sierra high-quality engine parts are designed to meet OEM specifications. For Alpha I-Generation 2 s/n D494569 & above Mercruiser Vazer For 30/40/45/50/60 4-stroke Bigfoot, 60 (3 cyl.) Bigfoot, 75-125 (all 3...

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      • Sierra 18-3317 Water Pump Kit Replaces 46-96148A8
        $47.99

        Mercruiser Pre-Alpha Water Pump Housing Kit by Sierra For #1/R Units without flush S/N 2763442 - 6854392 Pre-Alpha Mercruiser Drives. Models which have been retro fitted with an Alpha style ( no preload pin on top of driveshaft) must use Kit # 18-3320...

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      • Sierra 18-3016-1 Impeller Kit Replaces 47-862232A2
        $23.99

        Sierra 18-3016-1 Impeller Kit For Use On Late-Model Bravos & High Performances. Sierra replacement engine parts are manufactured to meet or exceed OEM requirements. Includes gasket Use with 18-3160-1 Sea Water Pump Fits: MCM 4.5L MPI; 2000...

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      • Sierra 18-3147 Water Pump Kit Replaces 817275k05
        $111.49

        Sierra 18-3147 Mercruiser Alpha Gen II Water Pump Kit Sierra high-quality engine parts are designed to meet OEM specifications. For use with Gen II Lower S/N D469859 and Up. Kit Contains: Carrier Seal 18-2354 Impeller 18-3056 Impeller Plate...

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      • Water Pump Impeller Mercury - Mercruiser 47-43026T-2
        $29.99

        Mercury - Mercruiser 47-43026T-2 Water Pump Impeller  Genuine OEM Mercury - Mercruiser part. Fits: 30/40/45/50/60 hp Fourstroke Bigfoot 60 hp (3cyl) BigFoot 75 - 125 hp (all 3 & 4 cylinder models s/n A996142 and above) 75/90/115 hp...

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      • Mercury-Mercruiser 46-96148Q-8 Water Pump Kit
        $56.99

        Mercury-Mercruiser 46-96148Q-8 Water Pump Kit - No Base OEM Mercury-Mercruiser Quicksilver water pump upper repair kit. Fits Mercury/Mariner 65 HP (4-cylinder) through V-6 outboards with short-vane impellers Fits Mercruiser I/R/MR/Alpha drives (s/n...

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      Mercruiser OEM Engine Parts Finder

      MerCruiser Impellers and Water Pumps

      Some of the most reliable water pumps and components for any type of craft are built by MerCruiser. If your boat has a MerCruiser outboard, its water pump will be one of its key parts. Here’s an important tip- once a year maintenance will keep your boat’s pump in top shape- that’s all it takes to extend its working lifetime. Water pumps and impellers do have a limited service life, however. When yours requires replacement, it is time to contact Wholesale Marine.

      Wholesale Marine carries replacement MerCruiser impellers, and water pumps for most every generation of MerCruiser from Sierra, and Mercury-MerCruiser. While most boaters prefer to have a reliable marine technician inspect and replace their boat’s water pump with a new part from our MerCruiser Water Pump selection, here are the steps to take for determined DIYers and technicians alike:

      Replacing MerCruiser Water Pumps:

      1. To access the water pump housing, drop the gearcase. This requires removing the
        mounting bolts.
      2. Locate the bolt under the trim tab. Mark its position to make its reassembly easier.
      3. Using a fitting socket on the four mounting bolts, remove the water pump assembly.
      4. If your MerCruiser impeller’s vanes are no longer straight, the component needs to be replaced. (Tip: Fresh sealant on the gaskets will reduce leaks.)
      5. Push the new impeller into the housing liner twisting slightly clockwise.
      6. Place the impeller key flat on the driveshaft. Next, lower the housing and impeller assembly into place. Be careful not to over-tighten the mounting screws.

      Water pump impellers are one of the more vulnerable pump assembly parts. MerCruiser impellers should be inspected once a year, or every 100 hours, and replaced as needed. Impellers are a series of rubber vanes that are molded around a hub that rotates. Friction, corrosion, water, sand, disuse, and heat can all abrade and degrade the rubber. Also, when the vanes are bent, this is an indication that replacement is required.

      Keep your engine running cool with help from Wholesale Marine. We have the MerCruiser Water Pumps that you or your marine technician require for replacement. Come to Wholesale Marine for every part that your MerCruiser outboard requires, including circulating pumps, thermostats, and temperature senders. If you have a question, our customer service reps will be glad to assist you.

      Be sure to ask them about our Captain’s Club Rewards Program for additional discounts the next time you shop at Wholesale Marine.

      Give us a call at (877) 388-2628, or try our user-friendly Online Parts Finder for help locating the correct parts for your outboard.

      We’re here Monday through Friday from 9:00 AM until 6:00 PM EST and look forward to serving your boating needs!