Quick view Add to Cart Sierra 18-43175 Thermostat Kit $46.99 Sierra 18-43175 Thermostat Kit Sierra replacement thermostat kit for Mercury and Nissan/Tohatsu Outboards. Temperature Rating: 130°F Interchangeable with: Mallory 9-43175 Mercury Marine 855676002 8M0119207 Nissan/Tohatsu... Add to Cart