Marine Thermostats

Boat thermostats are an integral part of your marine engine and should not be overlooked when completing your routine maintenance. These devices regulate the temperature of the water used in cooling your boat’s engine. They also help to maintain the correct pressure in the cooling system so that heat will transfer from the engine heads to the cylinder walls. When the thermostat is closed, air can not be passed through the engine, causing the temperature to rise. Once the temperature rises, the thermostat opens to allow the coolant to flow to the outboard. This is a continual cycle and often boat thermostats will need to be replaced. Not maintaining both of these components can cause costly damage and repair. Make sure to routinely check and replace your marine thermostat. 

Wholesale Marine carries the brand boaters trust in aftermarket marine engine parts; Sierra and marine thermostats are no exception. We stock a vast inventory of boat thermostats for almost any type of engine.  Just check out our engine parts finder to help you locate the part for your engine.

Don’t worry if your marine thermostat malfunctions and needs to be replaced, we are here to help.  Contact our marine engine parts and boat experts at Wholesale Marine at 877-388-2628. Monday through Friday from 9:00 AM to 6:00 PM.  We will help you find the thermostat that is right for your engine at a competitive price. Our same-day, flat-rate shipping will get your part out to you quickly and get you back on the water in no time. Sign-up for our Customer Loyalty program for additional savings on marine engine parts and all future at Wholesale Marine.