This product has been discontinued.
Sierra
Sierra 18-2646-1 Lower Unit Seal Kit
Price: $38.95
 Discontinued
Save: $52.94
(57% Off $91.89)
Part # 18-2646-1
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3 Customer Reviews
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(Discontinued)
This item is found in the following Product Families
Description Customer Reviews Customer Questions & Answers Shipping
Replaces OEM part #
  • MERCURY MARINE 26-816575A1
  • MERCURY MARINE 26-816575A3
For: Mercruiser Alpha Gen II
Kit Contains:
    ( 1 ) 18-2599 Face Seal and Tool - replaces O.E.# 26-818575A2
    ( 1 ) 18-2564 Water Pump Base to Face Plate Gasket - replaces O.E.# 27-43033-1
    ( 1 ) 18-2566 Face Plate to Water Pump Cover Gasket - replaces O.E.# 27-817277
    ( 1 ) 18-2945 Sealing Washer - replaces O.E.# 12-19183
    ( 1 ) 18-2944 Seal - replaces O.E.# 26-45577
    ( 1 ) 18-2002 Oil Seal - replaces O.E.# 26-76868
    ( 1 ) 18-2013 Oil Seal - replaces O.E.# 26-16977
    ( 1 ) 18-2014 Oil Seal - replaces O.E.# 26-89238
    ( 1 ) 18-2054 Oil Seal - replaces O.E.# 26-81646-1
    ( 1 ) 18-2076 Oil Seal - replaces O.E.# 26-12224
    ( 1 ) 18-2077 Oil Seal - replaces O.E.# 26-14077
    ( 1 ) 18-7159 Oil Ring - replaces O.E.# 25-31534
    ( 2 ) 18-7168 O-Ring - replaces O.E.# 25-48171
    ( 1 ) 18-7176 O-Ring - replaces O.E.# 25-90011
    ( 2 ) 18-7420 O-Ring - replaces O.E.# 25-21836
    ( 2 ) 18-7440-1 O-Ring - replaces O.E.# 25-36318
    ( 2 ) 18-2056 Oil Seal - replaces O.E.# 26-66302
    ( 1 ) 18-7413 O-Ring - replaces O.E.# 25-62702
Average Customer Review for Sierra 18-2646-1 Lower Unit Seal Kit
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Does not appear to be whole package i viewed. did not send me diagram or schematic
by Steven from Huntsville, Alabama on June 17, 2016
Does not appear to be all seals needed
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Lower Unit Seal Kit.
by Robert from Belleville, Illinois on August 25, 2015
The seal for the gear shift shaft appears to be the same outside diameter as the Mercruiser part, but when you press it into the gearshift bushing, it cracks the plastic bushing housing. Then you have to buy a new bushing housing to replace the old. When checked with a micrometer, the seal in the kit is just slightly larger than the Mercruiser part. In addition the new seal is metal, while the Mercruiser part was encased in rubber, giving it a little more "give" when pressed in place.
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Seal kit Ordering procedure.
by Dennis from Spokane, Washington on June 11, 2013
Your Product is good. What happened to Parts Finder? It was a very useful tool for me. I asked for a part and it asked what it was for, make, model, year, serial number, horse power, etc. I had to go to another parts place online to get parts for my Evenrude. I needed coils and points. I couldn't figure out your complicated ordering process. Looking forward to doing business with you again, if I can figure out how to order parts. Thank you. PS I'm not the only person who feels this way.
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