Upper Water Pump Kit
Item No. 314490
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Upper Water Pump Kit
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Upper Water Pump Kit

Upper Water Pump Kit is rated 4.6 out of 5 by 11.
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Item No. 314490
$33.24 $34.99 Compare at $44.99
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Additional Information
This kit contains all the parts needed to replace the upper water pump - including housing, impeller, plate, seal, gaskets, and O-rings.

Replacement kit fits:
Mercruiser - Gen One Outdrives, serial #2495186-6854392
MR/Alpha I, serial #6854393-D594568

Mercury - 75 - 85 hp, 4 cylinder
90 and 115 hp, 6 cylinder
140 hp, serial #4865678 and up
150 hp, serial #4121435 - 4868647
V135 thru V225 and XR4

Mariner - 80 hp, 4 cylinder
90 and 115 hp, 6 cylinder
135 thru 220 hp and Mag II
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  • Contains parts needed to replace upper water pump:
  • Housing, impeller, plate, seal, gaskets, & o-rings
  • Upper Water Pump Kit is rated 4.6 out of 5 by 11.
    Rated 5 out of 5 by from Great Kit. Great kit. Includes everything you need unless you want to change the base too.
    Date published: 2014-05-14
    Rated 5 out of 5 by from sierra quality Quality product, universal kit
    Date published: 2012-08-14
    Rated 4 out of 5 by from The quality looks good. needed this replaced immediately and received 2 days after ordering.....Great
    Date published: 2012-05-17
    Rated 5 out of 5 by from Mercruiser Lower Unit Product was what it was to be and works great only need the bottom section of the pump added with seal
    Date published: 2011-06-12
    Rated 3 out of 5 by from Does not fit Alpha 1 Gen 2 [...]. This pump is only for the Gen I. Also it only includes the upper casing, not the base.
    Date published: 2011-05-09
    Rated 5 out of 5 by from water pump kit perfect
    Date published: 2010-07-20
    Rated 5 out of 5 by from great deal This was a great deal couldn't beat the price anywhere i looked even for just the impeller without the housing. will be back next year for another.
    Date published: 2010-06-07
    Rated 4 out of 5 by from GOOD BUY... GOOD BUY FOR THE MONEY AND EASY TO INSTALL!
    Date published: 2010-04-28
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    I have a 1980 or 1981 Mercruiser MCM 260 serial#5925995. Will this kit work to replace the stern drive water pump?  If not, which one do I need?  Thank you 

    Asked by: Matt
    Please contact our Technical Team at 1-800-334-6541, with additional information.
    Answered by: Amanda
    Date published: 2017-08-31

    i have a 83 searay with a 305 mercruiser will this fix it.I could barely read the serial number on the drive i believe it reads 6746696

    Asked by: coastrunner
    Please contact our Technical Team at 1-800-334-6541, with additional information.
    Answered by: Amanda
    Date published: 2017-08-28

    Will this fit 1984 gen one 260 mercruiser?

    Asked by: DLA
    If your engine serial number is between 6854393 - 0D594568, then yes, this Upper Water Pump Kit will fit your engine.
    Answered by: Steve
    Date published: 2016-09-09

    will this fit a 1994 seapro mercruiser 3.0 alpha one. engine serial # 0F267810

    Asked by: Paul
    No. The manufacturer suggest part number 18-3570 (Item # 900172) for your application.
    Answered by: Steve
    Date published: 2016-07-21

    Will this fit an Alpha One on Mercruiser serial # OB938266? This is a V8 inboard motor.

    Asked by: Beth
    Yes. The Upper Water Pump Kit will fit your application. It is made for Mercruiser MR/ALPHA 1 serial numbers 6854393 - 0D594568.
    Answered by: Steve
    Date published: 2016-06-30

    Will this fit Mercury 75hp 4ST EFI Serial # IB485605? 

    Asked by: TWhite
    No. This Upper Water Pump Kit will not fit your application based on your serial number. the manufacturer does not have a listing for your serial number.
    Answered by: Steve
    Date published: 2016-06-03

    1992 Bluefin Spectrum 1750 has a MERCRUISER Alpha One 3.0L inboard Engine number is OD 837715  wanted to know if this impeller kit would work for my boat

    Asked by: FRED
    No. Based on the information that you provided, you will need Sierra Water Pump Kit, Sierra Part #18-3570 (Item # 900172).
    Answered by: Steve
    Date published: 2016-05-04

    Will this kit fit a 2007 Optimax 150?

    Asked by: dave
    Hello Dave, The Water Pump Kit should work for your Mercury Optimax 150 if the Serial numbers are between 4121435 - 4868647. Thank you, Steve
    Answered by: Anonymous
    Date published: 2015-09-23
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