Sierra® Thermostat Kit for Mercruiser® 170, 180, and 190 HP Engines, 1985 - 1987

Item # WX2-167161

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Details & Specs

Sierra® Thermostat Kit for Mercruiser® 170, 180, and 190 HP Engines, 1985 - 1987.

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. 18-3667) replaces your original thermostat and gasket kit (O.E.M. 99155T2).

Kit contains:
  • Thermostat (part no. 18-2555)-replaces O.E.M. part no. 99155A1
  • Thermostat Cover Gasket (part no. 18-3555)-replaces O.E.M. part no. 27-89656-1.

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


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This marine-grade Kit will withstand the rigors of "ugly" brackish and saltwater. Sierra® Thermostat Kit (part no. 18-3651) replaces your original thermostat (O.E.M. 807252Q3).

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