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Sierra® Thermostat Kit for OMC® Sterndrive 165-260HP / Cobra® 4.3-5.7L Engines, 1969-1992.
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. 18-3653) replaces your original thermostat, thermostat gaskets, and manifold gasket.Kit contains:
- Thermostat (part no. 18-3554)-replaces O.E.M. part no. 383307
- Manifold Gasket (part no. 18-2858)-replaces O.E.M. part no. 314809
- Thermostat Gasket (part no. 18-2917)-replaces O.E.M. part no. 3701777 (GM)
- Thermostat Gasket (part no. 18-2947)-replaces O.E.M. part no. 310913.
Order up top-quality replacement parts for bottom dollar today!