same day shipping clock icon
free shipping box icon
price tag icon

Mercruiser Water Pumps & Impellers

      • Sierra 18-3214 Impeller Kit Replaces 47-8M0100526
        List Price: $38.26
        Starting At: $26.78

        Sierra 18-3214 Impeller Repair Kit for Mercury, Mercruiser For Use On Alpa I Gen II, BF70, And BF90 S/N D494569 & Above. Kit Includes: (1) 18-2564 Water Pump Base to Face Plate Gasket (1) 18-2565 Water Pump Base to Gear Housing Gasket (1)...

        Add to Cart
      • Sierra 18-3150 Water Pump Kit Replaces 46-807151A14
        List Price: $94.02
        Now: $65.81

        Sierra 18-3150 Mercruiser Bravo H2O Water Pump Kit For use on all Mercruiser Bravo and TRS Sterndrives and Inboard Marine engines One piece housing. Can be used to replace the 2 piece housing sea water pump. Replaces: GLM 12088 Mallory 9-48350 ...

        Add to Cart
      • List Price: $50.19
        Now: $35.13

        Sierra 18-3320 Water Pump Kit Product Details: For MR/Alpha l Units S/N 6854393-0D469858 Includes: Water Pump Gasket 18-2801 Water Pump Base Gasket 18-2826 Water Pump Gasket 18-2914 Water Pump Gasket 18-2919 Seal Ring Gasket 18-2944 Rain Screw Gasket...

        Add to Cart
      • Sierra 18-3517 Water Pump Kit Replaces 46-60367A1
        List Price: $36.51
        Starting At: $25.56

        Sierra 18-3517 Upper Housing Water Pump Kit for Mercruiser Alpha One Drives Up to 1990 & Mercury 4-3/4 Gearcase Outboards For Use On Engine Models: Mercruiser #1 drives w/flush screw in housing. SN 2495186-2763441 Mercruiser #1 drives w/o flush...

        Add to Cart
      • Sierra 18-3217 Impeller Kit Replaces 46-96148A8
        List Price: $29.82
        Starting At: $20.88

        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...

        Add to Cart
      • Sierra 18-3017 Water Pump Impeller Replaces 47-89984T3
        List Price: $19.94
        Starting At: $13.96

        Sierra 18-3017 Water Pump Impeller for Mercury For Use On All #1,R,Mr,Alpha Units Thru S/N D494568 Also For Raw Water Pump On 190IB S/N 1564539-1720903 &225IB S/N...

        Add to Cart
      • Sierra 18-3087 Impeller Replaces 47-59362T1
        List Price: $22.93
        Starting At: $16.05

        Sierra 18-3087 Water Pump Impeller for Mercruiser, Mercury For use on Mercruiser Bravo Sterndrives and Inboard engines with engine mounted sea water pumps (1999 & older)...

        Add to Cart
      • Mercury - Mercruiser Body-Impeller Kit, 46-807151A14
        List Price: $105.50
        Starting At: $95.07

        Mercury - Mercruiser Body-Impeller Kit Fits plastic one piece body sea water pump Replaces: Pro Marine - 64151 Sierra - 18-3150 Redline - RL3150  

        Add to Cart
      • Sierra 18-3317 Water Pump Kit Replaces 46-96148A8
        List Price: $51.21
        Starting At: $35.85

        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...

        Add to Cart
      • Sierra 18-3056 Water Pump Impeller Replaces 47-43026T2
        List Price: $22.65
        Starting At: $15.85

        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...

        Add to Cart
      • Impeller Kit for Brass Sea Water Pump Mercruiser 47-8M0104229
        List Price: $42.49
        Starting At: $35.29

        Impeller Kit for Brass Sea Water Pump Mercruiser 47-8M0104229 Fits 2000 & Newer MCM V-6 & V-8 (305, 350, & 496 cid) engines with the brass sea water pump Replaces: GLM 89700 Mallory 9-45310 Sierra 18-3016-1 Mercruiser...

        Add to Cart
      • Water Pump Impeller Mercury - Mercruiser 47-43026T-2
        List Price: $28.16
        Starting At: $25.36

        Water Pump Impeller, Mercury - Mercruiser 47-43026T-2 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 FourStroke V-200 (3.0L) DFI V-225/250 (3...

        Add to Cart
      • Water Pump Repair Kit, Mercury - Mercruiser 47-8M0100527
        List Price: $51.99
        Starting At: $43.21

        Water Pump Repair Kit, Mercury - Mercruiser 47-8M0100527 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...

        Add to Cart
      • Water Pump Upper Repair Kit - Mercruiser I/R/MR/Alpha 46-96148T-8
        List Price: $57.59
        Starting At: $49.14

        Water Pump Upper Repair Kit - Mercruiser I/R/MR/Alpha 46-96148T-8 Fits Mercruiser I/R/MR/Alpha drives (s/n 2495186 - OD469858) Also fits Mercury/Mariner 65 HP (4 cylinder) through V-6 outboards with short vane impellers Includes: Plastic Pump...

        Add to Cart
      • Sierra 18-3160 Brass Sea Water Pump
        List Price: $306.91
        Starting At: $214.84

        Sierra 18-3160-1 Brass Sea Water Pump for Mercruiser Sierra high-quality marine engine parts are designed to meet OEM specifications. Use with 18-3016-1 Impeller Interchangeable with: Mercruiser Stern Drive 46-862914A13 8M0118062 s/s...

        Add to Cart
      • Sierra 18-3309 Water Pump Kit
        List Price: $38.00
        Starting At: $26.60

        Sierra 18-3309 Mercruiser Water Pump Kit for Bravo, TRS Sierra high-quality engine parts are designed to meet OEM specifications. For 2 piece pumps used on Mercruiser Bravo and TRS Drives. Kit Contains: (2) 18-0386 Water Pump Body Gasket (1)...

        Add to Cart

      MerCruiser Impellers and Water Pumps

      Some of the most reliable water pumps and components for any boat are built by MerCruiser. If your craft has a MerCruiser outboard, its water pump will be one of its key parts. Keep your boat’s pump in top shape by maintaining it at least once a year. Water pumps and impellers have a service life, however. When yours require replacement, it is time to contact Wholesale Marine.

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

      Replacing Your MerCruiser Water Pump:

      1. Drop the gearcase to access the water pump housing. 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, it needs to be replaced.
                    (Tip: Fresh sealant on the gaskets will reduce reduce leaks.)
      5. Push new impeller into the housing liner twisting slightly clockwise.
      6. Place impeller key flat on the driveshaft, then lower the housing and impeller assembly into place. Do not over-tighten the mounting screws.

      Water pump impellers are one of 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 which rotates. Friction, corrosion, water, sand, disuse and heat can all abraid 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. Whenever your MerCruiser Water Pump requires repair or replacement, come to Wholesale Marine. We carry every part for your MerCruiser outboard 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!