Thermostat Kit - 18-3647 - Sierra
Price: $24.53
Save: $7.96
(24% Off $32.49)
Part # 18-3647
2nd Day Air for $2.99 More Eligible
SHIPS TODAY!* if ordered in 8 hrs 27 mins.
This item is found in the following Product Families
Replaces OEM part #
  • (1) 18-3649 Thermostat - replaces O.E.# 807252-2
  • (1) 18-2844 Thermostat Cover Gasket - replaces O.E.# 27-48818-1
  • (1) 18-2552 Thermostat Cover Gasket - replaces O.E.# 27-33179-2
  • (1) 18-2553 Thermostat Cover Gasket - replaces O.E.# 27-47510
  • (1) 18-7173 O-Ring - replaces O.E.# 25-30224
  • (1) 18-2917 Thermostat Housing Gasket - replaces O.E.# 27-53045-1, 27-33918
Average Customer Review for Thermostat Kit - 18-3647 - Sierra
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Everything needed if you're careful
by Joe from Cary, North Carolina on September 27, 2013
Everything you need to replace the thermostat. Decent quality parts. Do be aware that the sleeve surrounding the thermostat is not included and it is easy to damage it during removal. My advice - plan on being clumsy and go ahead and order a replacement sleeve, too.
(1 of 1 people found this review helpful)
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Will this kit work for a 1994 Mercruiser 5.7?
We will need your engine serial number to confirm, let us know if you can provide that.

Serial number is F434126?
You will need to provide the year, make and horse power of the engine.

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