Sierra 18-2557-9 Impeller Gasket for Marine Water Pumps

The Sierra 18-2557-9 is a replacement impeller gasket designed for marine water pump applications. This gasket provides a critical seal between the impeller housing and pump body, preventing water leaks and maintaining proper cooling system performance in marine engines.

Key Features:

• Precision-cut gasket for exact fit and reliable sealing
• Constructed from durable, water-resistant material designed to withstand marine environments
• Essential component for water pump maintenance and impeller replacement
• Direct replacement for OEM gaskets in compatible marine water pumps

This gasket is a critical wear item that should be replaced whenever servicing your marine water pump or replacing the impeller. Using a new gasket ensures proper sealing and helps prevent costly engine overheating due to coolant system leaks.