Description
SIERRA Mercury 25-60 HP Water Pump Gasket – 18-0345
A lower-unit water-pump sealing gasket for compatible Mercury outboards using OEM 27-822189.
- Application: Selected Mercury 25-60 HP outboards; confirm engine model/serial and OEM 27-822189.
- Primary function: Water pump gasket
- Key specification: Horsepower family – 25-60 HP selected applications
- OEM / aftermarket cross-reference: Mercury: 27-822189; GLM: 37490
- Verify mating surfaces and follow the engine or drive service procedure during installation.
This part is application-specific. Confirm the OEM number and engine or drive configuration before installation.
Application: Selected Mercury 25-60 HP outboards; confirm engine model/serial and OEM 27-822189.
Specifications
- Component: Water pump gasket
- Horsepower family: 25-60 HP selected applications
- OEM reference: 27-822189
Interchange / Replaces
- Mercury: 27-822189
- GLM: 37490

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