Sierra® Thermostat Kit for Mercruiser® 340 HP 1981 - 1987, 7.4 Bravo / 350 Mag Engines 1988 - 1995

Item # WX2-167162

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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® 340 HP Engines 1981 - 1987, 7.4 Bravo / 350 Mag Engines 1988 - 1995.

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

This marine-grade Kit will withstand the rigors of "ugly" brackish and saltwater. Sierra® Thermostat Kit (part no. 18-3668) replaces your original thermostat, o ring, and gasket.

Kit contains:
  • Thermostat (part no. 18-3551)-replaces O.E.M. part no. 59137
  • 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
  • Thermostat Cover Gasket (part no. 18-2554)- replaces O.E.M. part no. 27-41812
  • O Ring (part no. 18-7173)- replaces O.E.M. part no. 25-30224.

Order up top-quality replacement parts for bottom dollar ONLINE today!

1981-1987, 7.4 Bravo / 350 Mag Engines 1988-1995


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