This product has been discontinued.
Sierra
Sierra 18-3672 - Thermostat Kit
Price: $20.95
Discontinued
Save: $7.44
(26% Off $28.39)
Part # 18-3672
(Discontinued)
Contains:
  • ( 1 )Thermostat 18-3553 - replaces Mercury/Mariner O.E. # 75692
  • ( 1 )Thermostat Grommet 18-0182 - replaces Mercury/Mariner O.E. #27-62386
Average Customer Review for Sierra 18-3672 - Thermostat Kit
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Based On 17 Reviews | Write Review
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Another Hi Quality part from Sierra
by a Customer from St Clair Shores, Michigan on May 05, 2017
Great quality part from Sierra. Complete kit and very reasonable price.
(0 of 1 people found this review helpful)
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Thermostat Replacement
by Steve from Eagar, Arizona on December 23, 2016
Great product, no difference that the OE at half the price!
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great product and fast service
by Bob from Billingsley, Alabama on August 10, 2015
great product and fast service
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Great Inventory
by Doug from Bethel Island, California on May 26, 2015
Have an older 1969 Johnson outboard great to have access to parts I need, so far parts have been on time, and fit ......Thank You
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always have the parts you need
by Gregory from Grayson, Kentucky on May 25, 2015
if you need parts this is the place to shop and buy. always has great selection of hard to find parts at a good price
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my thermostat kit
by Kenneth from Regina, Kentucky on April 21, 2015
parts was exactly as I ordered and shipped fast as well totally satisfied
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Thermostat Kit - Sierra
by Kenneth from Humble, Texas on August 21, 2013
Found the part online with no problem. everything I needed was in the package.
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No Problems
by David from Phoenix, Arizona on July 17, 2013
Correct Part and Work Fine
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Overheated
by Joshua from Blossvale, New York on June 23, 2013
This thermostat failed to open and my engine overheated. I have never been disappointed with Sierra products until now. Now my engine is running poorly and I'm hoping the head gasket let loose before the rings got cooked. 1973 Evinrude 25HP
(1 of 1 people found this review helpful)
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You NEED a Thermostat--Do Not Just Take It OUT
by Raymond from Fort Pierce, Florida on November 13, 2012
Got my part in TWO Days what more could you ask for
(1 of 1 people found this review helpful)
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Thermostats
by Joe from Johnsburg, Illinois on October 18, 2012
Solved my cooling problems good quality.
(3 of 3 people found this review helpful)
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JUST WHAT THE MOTOR ORDERD
by Toby from Costa Mesa, California on November 11, 2011
FIT - WORKS GREAT - FAST SHIPPING
(1 of 1 people found this review helpful)
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Just what I Ordered
by Clifford from Madras, Oregon on October 26, 2011
Exact fit!
(1 of 1 people found this review helpful)
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Follow up to previous review - Mercury 150 outboard
by Anthony from Key Largo, Florida on September 20, 2011
Iboats did provide me a refund for this thermostat kit...took approximately 2 months, but in the end they did come through.
(1 of 1 people found this review helpful)
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Wrong Thermostat Kit for Mercury Outboard
by Anthony from Key Largo, Florida on August 26, 2011
According to the iboat website, this thermostat kit is compatible with my 1993 Mercury 150HP outboard...it isn't! Save yourself the aggravation of water spraying out between the thermostat housing and the valve covers and being told that the parts are not refundable unless they are defective. I'm certain that these thermostat kits do work in some engines, just not in the outboard iboat's website references. Too bad this review does not allow criticism of iboat's customer service... I'm still waiting to see if I'll receive a refund due to their error!
(3 of 3 people found this review helpful)
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No gasket included
by John from Lancaster, New York on June 23, 2010
This kit does not include a gasket as stated in the discription.
(5 of 5 people found this review helpful)
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Review for Thermostat Kit for Johnson/Evinrude 310058 434841, Mercury/Mariner 75692, GLM 1
by a Customer on February 02, 2009
(2 of 6 people found this review helpful)
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Q:
So I already ordered this, but my question is, does it come with the gasket to replace?
A:
It comes with the thermostat and the thermostat grommet.


Q:
Is the picture the right way to install the gasket?
A:
Not necessarily this is just the way it is packaged. Refer to your repair manual to install properly.


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