Complete Water Pump Housing Kit - 18-3322 - Sierra
Price: $66.85
Save: $19.14
(22% Off $85.99)
Part # 18-3322
2nd Day Air for $2.99 More Eligible
SHIPS TOMORROW!* if ordered in 16 hrs 56 mins.
This item is found in the following Product Families
Replaces OEM part #
  • MERCURY MARINE 46-77516A3
    (1) 18-3007 Impeller - replaces O.E.# 47-89983
    (1) 18-3118 Upper Pump Housing - replaces O.E.# 46-77822A1
    (1) 18-3422 Base Water Pump - replaces O.E# 46-77516A1
    (2) 18-2945 Drain Gasket - replaces O.E# 12-20260, 12-19183
    (1) 18-2823 Lower Water Pump Base to Face Plate Gasket - replaces O.E.# 27-32769, 27-19553
    (1) 18-2824 Upper Face Plate To Body Gasket Plate To Body -replaces O.E.# 27-32770, 27-19551
    (1) 18-2825 Water Pump Base - replaces O.E.# 27-32771
    (1) 18-2841 Water Pump base - replaces O.E.# 27-77417, 27-19552
    (1) 18-2948 Drain Plug replaces O.E.# 12-49221-1
    (1) 18-3107 Plate replaces O.E.# 54705
    (1) 18-7155 O-Ring - replaces O.E# 25-26855
    (1) 18-7174 O-Ring - replace O.E.# 25-45711
    (1) 18-7115 O-Ring -replaces O.E.# 25-26722
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Great parts. Great price
by Joseph from Tallahassee, Florida on May 04, 2012
Wish it included an assembly diagram. My motor is quite old and I am not sure everything was correctly assembled by previous person who worked on it.
(1 of 2 people found this review helpful)
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lacking instructions for the extra parts ??
by Daniel from Newmarket, Ontario on April 15, 2012
the quality of the pump and seals looks good but it is aftermarket and comes with 2 different seals then the oem pump and no instructions on where the extra parts go there's a 2 1/2 inch o ring that's new and a lower gasket that's also new and unexplained and the key-way for the impella was not in my kit even thow its shown in the image the extra seal is bottom right and same with the O ring bottom right and the key way in the gasket bottom right not in kit and no instillation instructions
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Complete water pump
by Joseph from Waterloo, Illinois on November 08, 2011
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Will this part fit SN?
We will need the HP and serial number.

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