Sierra 18-0891-9 Water Circulating Pump Mounting Gasket 2-Pack

The Sierra International 18-0891-9 is a high-quality water circulating pump mounting gasket, sold as a convenient 2-pack. Engineered to meet or exceed OEM specifications, this gasket provides a reliable seal for the water circulating pump on GM V-6 and V-8 marine engines found in sterndrives and inboard applications.

Sierra replacement gaskets are manufactured to precise tolerances, ensuring proper fitment and long-lasting performance in demanding marine environments. This gasket is a direct replacement for components from Mercruiser, Volvo Penta, OMC, and other major marine engine manufacturers.

Key Features:

• Sold as a 2-pack (part suffix -9 denotes multi-pack)
• Designed for GM V-6 and V-8 engines (305, 350 & 377 cid / 4.3L, 5.0L & 5.8L)
• Meets or exceeds OEM specifications
• Direct replacement for Mercruiser, Volvo Penta, and OMC engines

OEM Cross-References:

• Chris-Craft: 16.50-00078
• GLM: 31380
• Johnson/Evinrude Outboard: 909835, 3852477
• Mallory: 9-60065
• Mercruiser Stern Drive: 27-34897, 27-34896, FI5000077, FI5000078
• OMC Inboard / Stern Drive: 909835, 3852477
• Volvo Penta: 3852477
• Yamaha Sterndrive: YSG-37545-87-G0

California Residents: WARNING — Cancer and Reproductive Harm. For more information, visit P65Warnings.ca.gov.