Quicksilver 807166A1 Water Shutter for MerCruiser Sterndrive Exhaust

The Quicksilver 807166A1 Water Shutter is a critical exhaust system component designed for MerCruiser sterndrive and select inboard engines. This precision-engineered shutter acts as a check valve to prevent following seas and water from washing back through the exhaust system into the engine when the engine is not running or operating at low RPM, protecting your engine from potentially catastrophic water intrusion damage.

Key Specifications:

• Shutter diameter at cross pin (hinge pin): 2.48 inches
• Genuine Mercury Marine OEM replacement part
• Direct replacement for worn or damaged exhaust shutters
• Designed specifically for MerCruiser sterndrive applications

Features & Benefits:

• Prevents water backflow through exhaust system when engine is off or idling
• Protects engine from hydrostatic lock and internal water damage
• Manufactured to Mercury Marine's exacting quality standards
• Tested through rigorous marine environment testing procedures
• Essential safety component for sterndrive exhaust systems

The Quicksilver brand has been the leader in marine engine parts and accessories for over 65 years, providing OEM-quality components that meet or exceed original equipment specifications. This water shutter undergoes extensive testing to ensure reliable performance in harsh saltwater and freshwater environments. Consult your owner's manual or service manual for specific application compatibility and installation instructions for your MerCruiser model.