Quicksilver 430075 Powerhead Base Gasket for Mercury L3/L4 3-Cylinder Outboard

The Quicksilver 430075 is a cylinder block to exhaust plate gasket designed for Mercury L3 and L4 3-cylinder outboard engines. This genuine Mercury Marine OEM replacement part creates a critical seal between the powerhead assembly and the exhaust plate, preventing water intrusion and maintaining proper engine compression.

Key Features:

• Genuine Quicksilver OEM part ensures precise fitment and reliability
• Creates a water-tight seal between cylinder block and exhaust plate
• Designed specifically for Mercury L3/L4 3-cylinder applications
• Prevents coolant leaks and maintains engine compression
• Essential component for powerhead rebuilds and maintenance

This gasket is a critical sealing component that should be replaced whenever the powerhead is removed for service or repair. Using genuine Mercury Marine gaskets ensures proper fit and long-lasting performance in demanding marine environments.

OEM Part Numbers: 27-430075, 430075