Sierra 18-2915-9 Upper Water Pump Gasket for MerCruiser & Mercury Marine (Pack of 2)

The Sierra 18-2915-9 Water Pump Gasket is designed for use in Mercruiser stern drive and Mercury marine applications. This upper water pump to wear plate gasket ensures a reliable seal between critical cooling system components, preventing leaks and maintaining optimal engine temperature. Sold as a convenient pack of 2 gaskets.

Key Features:

• Premium marine-grade gasket material designed for harsh saltwater and freshwater environments
• Pack of 2 gaskets for maintenance convenience
• Meets or exceeds original equipment specifications
• Precision-cut for proper fit and reliable sealing

OEM Cross References:

• GLM 31020, Mallory 9-60035
• Mercruiser Stern Drive: 27-32434, 27-856091, 27-858524
• Mercury Marine: 27-30604, 27-32434, 27-85609, 27-856091, 27-858524

Sierra Marine has over 50 years of experience manufacturing premium aftermarket marine parts. These gaskets are engineered to withstand the demanding conditions of marine engines and provide long-lasting, dependable performance.