The technologically innovative MERCRUISER THERMOSTAT (118-3555) uses bleed notches, check valves, and other features to remove air from the system. Use stainless steel pistons for a longer lifespan and more effective performance. For more effective operation, heat the brass guide and cover the motor piston. For added durability and strength, the spring frame is made of stainless steel and has channel construction. The engine can quickly reach its ideal operating temperature thanks to the stainless steel spring's precise working compression.
Key Features:
Specifications:
Temperature Rating: 160°F
We can ship to virtually any address in the US. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.)
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.
Sea Star Solutions
THERMOSTAT 130 CHRYS/FORCE - 18-3556 is a valve in an outboard's cooling system that responds to temperature by opening or closing. The operational temperature rises when it is closed because the...
Sea Star Solutions
T-STAT J/E - 18-3561 is a cooling system valve that opens or closes in response to the temperature. When closed, the flow of cooling water is stopped, causing the operating temperature to increase...
Sea Star Solutions
The 160-degree thermostat provides a 30-degree increase in temperature over the standard 140-degree factory version, eliminating any drivability issues caused by excessively lean running times. It...
Sea Star Solutions
This high-standard thermostat is designed excellently for use in Mercury marine applications. This product is interchangeable with Chrysler/Force/US Marine F335068, GLM 13080, Johnson/Evinrude...
Sea Star Solutions
Optimal engine temperature optimizes performance and efficiency. Mercury Marine thermostat by Sierra 18-3549. A malfunctioning thermostat can cause an engine to operate over its optimal temperature,...
Sea Star Solutions
The thermostat kit comes with (1) 18-2548 thermostat cover gasket, (1) 18-0929 thermostat gasket, and (1) 18-2557 thermostat. It meets or surpasses the original equipment part it replaces and is...
