Quicksilver upper water pump gasket 27-822189 is a genuine gasket for the upper part of the water pump housing on select Mercury, Mariner, and Force outboard engines. The gasket is used when servicing the water pump or impeller and helps seal the pump housing to maintain cooling water flow without leakage or pressure loss.
The gasket is documented for select 25-60 hp Mercury and Mariner outboards with both 2-stroke and 4-stroke engines. It also fits Force 75 hp outboards. Compatibility does not necessarily include all engines within these horsepower ranges, and the engine serial number as well as the gearcase configuration should therefore be checked before ordering.
For Mercury and Mariner F40 EFI, F50 EFI, and F60 EFI, the gasket is intended for models with a standard gearcase. The documented application does not include CT or BigFoot gearcases.
The full Mercury/Quicksilver part number is 27-822189, while the current Quicksilver core number is 822189. Both numbers identify the same gasket, and the associated GTIN/UPC is 745061337176.
When replacing, the gasket surfaces must be clean, and the existing part number should be cross-referenced with the engine's parts catalog. This ensures the correct selection in cases where the same engine horsepower is available with different gearcases or production series.
Key featuresGenuine Quicksilver spare part
Part number: 27-822189
Quicksilver core number: 822189
Location: Top of the water pump housing
For select Mercury and Mariner 25-60 hp outboards
For Force 75 hp outboards
F40 EFI, F50 EFI, and F60 EFI require a standard gearcase
Does not fit CT or BigFoot gearcases in the documented EFI application
Always check serial number and gearcase configuration before purchase
