Sierra
Mercruiser Generation II Sterndrive Water Pump Assembly Exploded View
Mercruiser Sterndrive Water Pump Assembly Exploded View Diagram and Parts
Fits Generation II
Figure #DescriptionO.E.M. #Sierra #Qty.
1Face Plate817276 18-31221
2Housing Assembly N.S.S1
3Gasket, Base27-43033-1 18-25641
4Gasket, Housing27-817277 18-25661
5Seal, Face26-816575A2 18-25991
6Screw, Housing N/A4
7Impeller47-43026-2 18-30561
8Coupling Assembly47-43026T11 18-31511
9O-Ring25-21836 18-74202
10Sleeve N/A1
Average Customer Review for Water Coupling Assembly - 18-3151 - Sierra
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Great experience
by John from Plains, Georgia on July 09, 2014
Fast shipping. Easy selection. Was able to get the boat back on the water quickly.
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Perfect
by Timothy from Lakeland, Florida on May 22, 2016
Exactly what I needed
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Average Customer Review for Sierra 18-3056 Water Pump Impeller
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Based On 8 Reviews | Write Review
Full StarFull StarFull StarFull StarEmpty Star
Good fast delivery
by Doug from Sheboygan Falls, Wisconsin on August 08, 2016
Hey - I got the right parts, at a fair price in just a couple days and the process for finding them online was no big deal. What more can you ask for?
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Very satified
by Henry from Hoschton, Georgia on June 28, 2016
Could not have been better!
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Impeller worked great!
by Brian from Harrisburg, South Dakota on June 02, 2015
The impeller worked great... wish it would come as a full kit however, with gaskets and all.
(2 of 2 people found this review helpful)
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good produce as advertised
by Bruce from Killeen, Texas on April 04, 2015
Good packaging, fast shipping, fast turnover. New in package as advertised, Good quality at great price.
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Geat Product
by Jon from Fair Oaks, California on May 07, 2014
Exactly what I needed to replace my old impeller
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Impeller order
by Richard from Sneads Ferry, North Carolina on February 16, 2013
Product was delivered just in a nick of time. Arrived several days before due date. It was the right part and of very good quality and packaged properly. Thanks for the quick shipment. I have ordered parts from you before and am impressed with your return policy. I consider it the best in the industry.
(0 of 1 people found this review helpful)
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Water Pump Impeller - Sierra
by Benjamin from Dacula, Georgia on September 27, 2012
ok
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Water Pump Impeller
by James from Warrenton, Oregon on June 12, 2012
Great price and fast service!
(4 of 4 people found this review helpful)
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Average Customer Review for Face Seal & Tool - 18-2599 - Sierra
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Face Seal and tool
by Jay from Mount Arlington, New Jersey on July 02, 2016
The parts were good and worked fine. I called for help before ordering and Travis(?) was extremely helpful in getting the right part.the only problem was shipping. I ordered Jun 1, given ship Jun 3 with deliver of Jun 9. I called on Jun 8 and nothing had shipped. I was told it would ship today. Shipped on Jun 9 rec Jun 15. UNACCEPTABLE service
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Quality
by Lindsey from Woodruff, South Carolina on June 09, 2012
I only needed the tool which is essentially a depth spacer. This proved to be exactly what I needed.
(2 of 2 people found this review helpful)
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Q:
Two gaskets?
A:
Yes this comes in a package of two.


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Question & Answer Guidelines
This product ships in 1 business day.
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Price: $4.51
Save: $2.47
(35% Off $6.98)
Part # 18-2566-9
2nd Day Air for $2 More Eligible
No Reviews
Replaces OEM part #
  • MERCURY MARINE 27-817277
For: Mercury/Mariner 75 / 90 / 100 / 115; Mercruiser Alpha I - Generation 2
Package of 2
Price: $3.76
Save: $6.19
(62% Off $9.95)
Part # 18-7420-9
2nd Day Air for $2 More Eligible
No Reviews
Dimensions ( in )
I.D. .862
Width .139

Replaces OEM part #
  • MERCURY MARINE 25-21836
  • MERCURY MARINE 25-25439
GLM 12041 replacement parts
Price: $9.27
Save: $2.72
(22% Off $11.99)
Part # 18-3151
2nd Day Air for $2 More Eligible
Replaces OEM part #
  • MERCURY MARINE 816597
  • Sierra warrants its Water Coupling Assemblys and other engine parts to be free of defects in workmanship and materials for the life of the vessel on which they were originally installed.

Price: $6.40
Save: $3.59
(35% Off $9.99)
Part # 18-3122
2nd Day Air for $2 More Eligible
Replaces OEM part #
  • HONDA 19231-ZW1-003
    For: 75-90 HP MERCURY MARINE 817276
  • MERCURY MARINE 817276 1
For Alpha l - Generation 2 S/N D494569 & Above
Price: $14.52
Save: $10.97
(43% Off $25.49)
Part # 18-3056
2nd Day Air for $2 More Eligible
Replaces OEM part #
  • MERCURY MARINE 47-43026-2
  • MERCURY MARINE 47-43026-T2
  • MERCURY MARINE 47-43026-2
  • MERCURY MARINE 47-43026-T2
  • MERCURY MARINE 47-43026 1
  • MERCURY MARINE 47-43026 4
  • MERCURY MARINE 47-43026B2
  • CHRYSLER FORCE 47-430262
  • HONDA 19210-ZW1-003
    For: 75-90 HP
For Alpha l-Generation 2 S/N D494569 & Above
Price: $4.68
Save: $2.30
(32% Off $6.98)
Part # 18-2564-9
2nd Day Air for $2 More Eligible
Replaces OEM part #
  • HONDA 19234-ZW1-003
  • MERCURY MARINE 27-43033-1
For: Mercury/Mariner 70 / 75 / 80 / 90 / 100 / 115; Mercruiser Alpha I - Generation 2
Package of 2
Price: $5.25
Save: $1.74
(24% Off $6.99)
Part # 18-2599
2nd Day Air for $2 More Eligible
Replaces OEM part #
  • MERCURY MARINE 26-816575A2
For: Mercruiser Alpha I Generation II