This product has been discontinued.
Sierra
Sierra 18-3553 Thermostat
Price: $15.95
 Discontinued
Save: $8.14
(33% Off $24.09)
Part # 18-3553
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5 Customer Reviews
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(Discontinued)
Description Customer Reviews Customer Questions & Answers Shipping

Details:

  • 143 Degree

Replaces OEM part #

  • MERCURY MARINE 75692
  • MERCURY MARINE 62981
  • MERCURY MARINE 66850
  • MERCURY MARINE 75692B
Average Customer Review for Sierra 18-3553 Thermostat
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Missing parts
by James from Cascade, Colorado on May 17, 2015
This product did not come with the appropriate Gasket, which it should. Which made it junk to me. Wrote it off as a waste of money, because It would just cost more to me to send it back.
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Thermostats - Sierra
by Dave from Martinez, Georgia on July 15, 2014
Mercury running cool short time from the time i ordered till they arrived great price
(1 of 1 people found this review helpful)
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Thermostats
by Tim from Winston Salem, North Carolina on November 07, 2013
I ordered the thermostats and water pump kit, they arrived quickly. I'm pleased, will use you again. Thanks
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It fits!
by Bennett from Herriman, Utah on March 20, 2012
It's a thermostat that fits!
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Thermostat
by James from Wilmington, North Carolina on August 11, 2011
I would like to have the rubber washer included with the product. I did not like reusing the old rubber washer. Speedy delivery!
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Q:
Is this the correct thermostat for a 1974 force 55 hp?
A:
No this is not correct. You will need 18-3556.

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