Thermostats

Replacement Thermostats for Outboard Motors
Maintain proper engine temperature and protect your investment with replacement thermostats for outboard motors. A properly functioning thermostat is essential for your outboard's cooling system, helping the engine reach and maintain its ideal operating temperature for maximum performance, fuel efficiency, and longevity.

Whether you're performing routine maintenance or replacing a faulty thermostat, Deep V Rigging Company offers quality replacement thermostats designed for reliable performance on the water.

Why Is an Outboard Thermostat Important?
Your outboard's thermostat regulates the flow of cooling water through the engine. It allows the engine to warm up quickly after startup and then maintains the proper operating temperature throughout your day on the water.

A properly operating thermostat helps:

• Maintain optimal engine temperature
• Improve fuel efficiency
• Reduce engine wear
• Promote proper combustion
• Protect against overheating
• Maximize engine performance

Running an engine that is too hot—or too cold—can negatively affect performance and shorten engine life.

Signs of a Faulty Thermostat
Over time, thermostats can become stuck open or closed due to corrosion, mineral deposits, or normal wear.

Common symptoms include:

• Engine overheating
• Low operating temperature
• Overheat warning alarms
• Inconsistent engine temperature
• Reduced performance
• Poor fuel economy
• Steam from the telltale or cooling system

Replacing a worn thermostat is inexpensive preventative maintenance that can help prevent costly engine repairs.

Replacement Thermostats for Popular Outboard Brands
We carry replacement thermostats for many leading outboard manufacturers, including:

• Mercury®
• Yamaha®
• Suzuki®
• Honda®
• Evinrude®
• Johnson®

Whether you have a portable outboard, a family fishing boat, or a high-performance tournament rig, we can help you find the correct thermostat for your engine.

Built for Reliable Cooling Performance
Quality replacement thermostats are designed to provide:

• OE-style fit and performance
• Accurate temperature regulation
• Corrosion-resistant materials
• Long service life
• Reliable engine warm-up and cooling

Replacing your thermostat with a quality component helps ensure your cooling system performs as intended.

Routine Cooling System Maintenance
Many boat owners replace the thermostat while servicing other cooling system components, including:

• Water pump kits
• Replacement impellers
• Thermostat gaskets
• Pressure relief valves
• Cooling system seals and O-rings

Performing routine cooling system maintenance helps reduce the risk of overheating and unexpected breakdowns during the boating season.

Keep Your Outboard Running at Peak Performance
A properly functioning thermostat is a small part that plays a big role in protecting your engine. At Deep V Rigging Company, we carry dependable replacement thermostats to help keep your outboard operating at the correct temperature for years of reliable service.

If you're unsure which thermostat fits your engine, our experienced team can help you identify the correct replacement based on your outboard's make, model, horsepower, and year.