The Sierra 18-0952-9 Relief Valve Plate Gasket is interchangeable with the following: GLM 32330, Mercruiser 27-88907003, Mercury 27-88907, 27-88907003. Each Sierra product meets or exceeds the original equipment part it repl...

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Product Review

The Sierra 18-0952-9 Relief Valve Plate Gasket is interchangeable with the following: GLM 32330, Mercruiser 27-88907003, Mercury 27-88907, 27-88907003. Each Sierra product meets or exceeds the original equipment part it replaces.

  • Sierra Relief Valve Plate Gasket
  • Meets or exceeds the original equipment quality
  • Sierra part number: 18-0952-9
  • Interchangeable with the following: GLM 32330, Mercruiser 27-88907003, Mercury 27-88907, 27-88907003

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