Mercury 16326 is a genuine OEM gasket commonly identified as 27-16326, and catalog listings describe it as a pump body gasket used in selected small Mercury outboard carburetor and fuel-pump related assemblies.

Key Features

• Genuine Mercury Marine / Quicksilver OEM part
• Part number 16326
• Mercury shorthand listing: 27-16326
• Commonly identified as a pump body gasket
• Small service gasket used in carburetor-side pump assemblies on applicable engines.

Engine Compatibility
This gasket is associated with selected small Mercury and Mariner 2-stroke outboards, especially 4 HP, 5 HP, 6 HP, 8 HP, and 9.8 HP carbureted applications, depending on model and serial range. Parts-diagram references place it in carburetor assemblies for those engine families, so exact fitment should still be confirmed by model and serial number before ordering.

Serial Number Fitment Notice
Please confirm compatibility in the Mercury Parts Catalog using your exact engine serial number before purchase. Mercury’s official catalog is organized by model and serial number for accurate parts lookup.

When This Part Needs Replacement
This gasket is typically replaced during carburetor or fuel-pump service when the original gasket is torn, compressed, leaking, or no longer sealing correctly after disassembly. Because it serves as a pump body gasket, renewing it during rebuild or service work helps maintain proper fuel-system sealing. This is a practical service inference based on the part’s documented placement in pump-body and carburetor assemblies.

Installation Notes
Install only the exact gasket specified for the carburetor / pump assembly being serviced. Small outboard fuel-system gaskets can look similar, so matching by exact part number and serial-number-based diagram is the safest approach.

Alternate / Superseded Part Numbers

• 27-16326
  No confirmed superseded number was established from the sources reviewed.

Parts Desk Insight
On small carbureted outboards, little gaskets like this do a lot of important sealing work. Replacing them during pump or carb service is a smart way to help avoid nuisance fuel seepage and repeat teardown work.

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