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Water Pump Kit - 18-3320 - Sierra

Sierra
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Save 31% Off.
Water Pump Kit - 18-3320 - Sierra
Meltdown Sale Price: $32.39
Save: $15.07
(31% Off $47.46)
Part # 18-3320 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 17 hrs 54 mins.
This item is found in the following Product Families
Mercury Water Pump Repair Kits
Mallory and Sierra water pump repair kits for Mercruiser engines.
Mercury Marine 46-44292A5 replacement parts
Water Pump Base - Sierra
Mercury Marine 46-44292A5 replacement parts
Kit Contains:
  • (1) 18-3109 Water Tube - replaces O.E.# 23-29804
  • (1) 18-3017 Impeller - replaces O.E.# 47-89984
  • (1) 18-3116 Housing - replaces O.E.# 46-96148A1
  • (1) 18-3420 Water Pump Base - replaces O.E.# 46-44292A3
  • (1) 18-2919 Water Pump Base to Gear Housing Gasket - replaces O.E.# 27-42631-1
  • (1)18-3110 Grommet - replaces O.E.# 26-38970
  • (2) 18-2945 Gear Housing Drain Screw Gasket - replaces O.E.# 12-19183
  • (1) 18-2826 Water Pump Base to Gear Housing Gasket - replaces O.E.# 27-85610-1
  • (1) 18-2914 Lower Water Pump to Wear Plate Gasket - replaces O.E.# 27-85608-1
  • (1) 18-2915 Upper Water Pump to Wear Plate Gaskte - replaces O.E.# 27-85609-1
  • (1) 18-2944 Seal Ring - replaces O.E.# 26-45577
  • (1) 18-3117 Plate - replaces O.E.# 32435
  • (1) 18-7158 O-Ring - replaces O.E.# 25-30613
  • (1) 18-7162 O-Ring - replaces O.E.# 25-33145
  • (1) 18-7173 O-Ring - replaces O.E.# 25-30224
  • (1) 18-7176 O-Ring - replaces O.E.# 25-90011
  • (1) 18-2801 Water Pump Gasket - replaces O.E.# 27-32438
  • (1) 18-7196 O-Ring - replaces O.E.# 25-38099
  • (1) 18-7426 O-Ring - replaces O.E.# 35-30271
Average Customer Review for Water Pump Kit - 18-3320 - Sierra
Full StarFull StarFull StarFull StarHalf Star Based On 14 Reviews | Write Review
Full StarFull StarFull StarFull StarEmpty StarNice kit
by Donald from Campbell, Ohio on June 19, 2015
Everything you need to rebuild your mercruiser water pump.
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Full StarFull StarFull StarFull StarFull StarWater Pump Kit
by Norman from Baldwinsville, New York on May 26, 2015
Great kit with all the pieces I needed at a fantastic price!
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Full StarFull StarEmpty StarEmpty StarEmpty StarNot bad
by Jarold from Henderson, Nevada on October 21, 2014
While it did come with all the gaskets you could possibly want, the base however was to big to fit in the MR/Alpha housing. Not sure when the size change occurred but if you order this unit be sure to save the old pump housing base to reuse or you will be screwed!
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Full StarFull StarFull StarFull StarFull Starfast shipping the item is a good quality.
by Robert from Hudson, Florida on October 19, 2014
very pleased with IBoats parts catalog.the item was very easy to install.I will be ordering from IBoats in the future. I need to do a transom seal next.
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Full StarFull StarFull StarFull StarEmpty Stargood service and fast delivery
by Paul from Guelph, Ontario on October 16, 2014
I received the right part and iboats was fast to ship it out. It would be great if they offered UPS delivery all the way to my door rather than canada post after it left customs
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Full StarFull StarFull StarFull StarFull StarWater pump kit
by Marc from Burley, Idaho on July 04, 2014
Boat runs great now , no more over heating .
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Full StarFull StarFull StarFull StarFull Starwater pump kit
by Joel from Winnabow, North Carolina on July 27, 2013
got my parts on time and works great ,no problems
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarMercruiser water pump
by Dawn from Union Gap, Washington on June 17, 2013
Thank you for having a complete kit with the base. This made it easier to have all matching parts. Love that everything works great in the boat now as Iboats had everything we needed.
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarFits Well
by Victor from Bellaire, Ohio on May 24, 2013
This is a complete kit for a pre Gen 2 Alpha outdrive. Several O-rings are included. Make sure to use the correct one on the lower pump plate. I had to use the thinner one.
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Starmerc. 224 cid/165 hp 4 cyl.
by Siah from Morehead, Kentucky on April 25, 2013
this is an exact fit. great quality. no instructions ,so pay attention when you disassemble and double check for any debris from old impellor and clean well.
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarEmpty StarExcellent product
by Otis from Land O' Lakes, Florida on September 25, 2011
The water pump itself is an excellent kit, there needs to be some information included regarding the "extra" parts that are not needed in all cases.
(4 of 4 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarWater pump kit
by John from Eagle River, Wisconsin on August 29, 2011
I am not a boat mechanic and the name of this item confused me. I would have called it "impeller and housing with gaskets" It installed easily and all the correct parts were included. Right price, right part.
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarGreat for DIY
by Timothy from Winchester, California on July 22, 2011
Kit was a bit confusing because it came with gaskets not used on my Alpha Gen. 1 stern-drive and no instructions, but everything went together perfectly and the boat is seaworthy again.
(2 of 2 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarReview for Sierra 18-3320 Pump Kit
by a Customer on September 13, 2009
(1 of 5 people found this review helpful)
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Q:
I have an ALFA1 SN# 0B662125 is the Sierra 18-3320 the correct part for me. What does 'MR' stand for?
A:
This would be the best replacement for your Mercruiser engine. MR generally stands for Mercury or Mercruiser.
Q:
Have 1988 5L. 305 c.i. alpha 1 ,is this the correct kit ?
A:
Yes the Alpha 1 (pre Gen II) went from 1983-1990. So this kit will work for that outdrive.
Q:
Do I need the 18-3319 or 18-3320 for my Mercruiser SN: 0B429113?
A:
18-3320 is called for Mercruiser MR/Alpha outdrive. MR/Alpha ranges from 6854393-D594568.
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