Sierra® Thermostat Kit for Mercruiser® 4.3 - 5.7L Engines, 2002 - 2007

Item # WX2-167151

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This item is shipped directly from the factory. To see the expected shipping date, please add to your Shopping Cart. Sorry, no express shipping available. We are unable to ship factory direct items to Alaska, Hawaii, Puerto Rico or APO or FPO addresses.

Details & Specs

Sierra® Thermostat Kit for Mercruiser® 4.3 - 5.7L Engines, 2002 - 2007.

Proper thermostat operation is key in getting peak performance and maximum fuel efficiency!

This marine-grade Kit will withstand the rigors of "ugly" brackish and saltwater. Sierra® Thermostat Kit (part no. 18-3647) replaces O.E.M. thermostat kit no. 807252Q5.

Kit contains:
  • Thermostat (part no. 18-3649)- replaces O.E.M. part no. 807252-2
  • Thermostat Cover Gasket (part no. 18-2844)- replaces O.E.M. part no. 27-48818-1
  • Thermostat Cover Gasket (part no. 18-2552)-replaces O.E.M. part no. 27-33179-2
  • Thermostat Cover Gasket (part no. 18-2553)- replaces O.E.M. part no. 27-47510
  • O Ring (part no. 18-7173)- replaces O.E.M. part no. 27-30224
  • Thermostat Housing Gasket (part no. 18-2917)- replaces O.E.M. 27-53045-1, 27-33918.


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