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Mercruiser Water Shutters

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Exhaust Water Shutter - 18-2727 - Sierra
Summer Sale Price: $21.59
Save: $6.69
(23% Off $28.28)
Part # 18-2727 ValueShip™ Eligible
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Replaces OEM part #
  • MERCURY MARINE 60930
Water Shutter - 18-2732-9 - Sierra
Summer Sale Price: $53.09
Save: $18.57
(25% Off $71.66)
Part # 18-2732-9 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 807166A3
Water Shutter - 18-2733 - Sierra
Summer Sale Price: $19.79 (Out of stock)
Save: $7.60
(27% Off $27.39)
Part # 18-2733 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 99370A2
Merc. Divider Plate Gasket
Merc. Divider Plate Gasket
Your Price: $12.50
Save: $2.11
(14% Off $14.61)
Part # 521-32
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    Mercury:
  • 27-19050 6
Sierra
Average Customer Review for Water Shutter - 18-2732-9 - Sierra
Full StarFull StarFull StarFull StarEmpty Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarEmpty Star88 mercruiser 5.7l alpha one water shutters
by Sam from Monticello, Iowa on May 10, 2014
Decent product, more restrictive than older design, less prone to breaking though. Note especially for the older casting y pipes, my new shutters did not just fit right in. My castings were not the same size as plastic ring and the plastic will break easily if forced. I had to hand file the y pipes to fit these replacement water shutters. But mine is a 88. Little hand tuning and mine fit fine, work very well. Might just be mine, but I thought I would throw it out there if I'm not alone with imperfect cast aluminum 4" oval y pipe.
(1 of 1 people found this review helpful)
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Average Customer Review for Water Shutter - 18-2733 - Sierra
Full StarEmpty StarEmpty StarEmpty StarEmpty Star Based On 1 Review | Write Review
Full StarEmpty StarEmpty StarEmpty StarEmpty StarReturning Items Through iboats a RIPOFF!!!
by John from Dixon, Missouri on March 21, 2012
I ordered this item for a boat, then sold the boat before they arrived. I had no issues paying the return shipping, because this was my choice. I simply wanted to get my money back for an item that I did not need. However, after following their VERY complicated return procedures, I shipped the item back in plenty of time, but was told by iboats that my return authorization was expired. So basically what happened, they took my item back, put it on the shelf, then told me that they never got it. DO NOT TRUST iBOATS!!! I have since bought a new boat, and will be buying ALL my parts from Jamestown Distributors or West Marine. I will never do business with these ripoff artists again...
(16 of 17 people found this review helpful)
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Q:
Will this fit my 1989 5.7 Mercruiser exhaust 3'' y pipe opening?
A:
Yes, we have verified that this will work with your Mercruiser motor.
Q:
I have a 1979 V8 Merc with Alpha One outdrive. Am I buying the right shutter?
A:
Alpha One outdrives didn't begin until 1983 or so. So for a 1979 we cannot look that up, we would need engine model along with serial number to look up shutter.
Q:
Is this listing for a pair or for a single shutter?
A:
This part number is for a single shutter, not a pair.
Q:
Will this part fit inline 6 165hp mercruser?
A:
Yes. This water shutter works for several different Mercruiser applications, including your Inline 6 165 horsepower motor.
Q:
Will this fit my 1990 7.4 Mercruiser exhaust, my old ones dont look like these ones.?
A:
Unfortunately, this shutter is not compatible with your Mercruiser motor. Feel free to post a question on our Forum page to find the shutter you need: http://forums.iboats.com/
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