Sierra 18-3648 Marine Thermostat Kit 160 Degree

The Sierra 18-3648 Marine Thermostat Kit is a premium replacement cooling system component designed for MerCruiser stern drive engines. This complete kit features a 160-degree temperature rating, making it ideal for 1987 and newer GM V-6 and V-8 marine engines with standard cooling systems.

Kit Includes:

• 18-3649 Thermostat (160°F)
• 18-2553 Thermostat Cover Gasket
• 18-2917 Thermostat Gasket

Key Features:

• 160-degree Fahrenheit temperature rating for optimal engine cooling performance
• Design #3 configuration for precise fitment
• Complete kit with all necessary gaskets for proper installation
• Manufactured to meet or exceed OEM specifications
• Direct replacement for reliable cooling system operation

OEM Cross References:

• Mallory: 9-43100

Sierra Marine products are engineered with premium materials and precision manufacturing to ensure dependable performance in demanding marine environments. This thermostat kit helps maintain your engine at its ideal operating temperature, protecting against overheating and ensuring efficient combustion for better fuel economy and engine longevity.