Description
SIERRA Gearcase Drain Screw Gasket, 2-Pack – 18-2945-9 is a 2-piece replacement gearcase drain screw gasket package for Mercury/Mariner, MerCruiser, Johnson/Evinrude and OMC lower units.
Seals the 3/8-16 lower-unit or sea-water-pump drain/fill screw to help prevent water intrusion and lubricant leakage. Replace the gasket whenever the joint is opened if the original seal is compressed, torn, hardened or otherwise unsuitable for reuse.
Key Features
- 2 gearcase drain screw gaskets per package
- Cataloged for Mercury/Mariner, MerCruiser, Johnson/Evinrude and OMC lower units
- Seals the 3/8-16 lower-unit or sea-water-pump drain/fill screw to help prevent water intrusion and lubricant leakage.
- Designed for marine engine/drive service at the specified sealing joint
- Cross-references Mercury/MerCruiser 12-19183 / 12-20260, Johnson/Evinrude/OMC 307552, Mallory 9-60101
Specifications
- Manufacturer Part Number: 18-2945-9
- Product Type: Gearcase Drain Screw Gasket
- Package Quantity: 2
- Application: Mercury/Mariner, MerCruiser, Johnson/Evinrude and OMC lower units
Interchange / Cross Reference
- Mercury/MerCruiser 12-19183 / 12-20260
- Johnson/Evinrude/OMC 307552
- Mallory 9-60101
Verify the engine/drive model, serial range and original part number before ordering.

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