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Sierra Marine

Sierra Marine Upper Gearcase Dipstick Gaskets

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Gaskets are important, especially on your boat. These small parts have a big job, and Sierra Marine offers several options to keep your boat on the water and running its best. Their upper gearcase dipstick gaskets or washers seal the area around the dipstick, keeping fluids in and water out. Select the gaskets designed for your boat engine.

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Sierra Marine Upper Gearcase Dipstick Gaskets 18-0939-9

Sierra Marine Upper Gearcase Dipstick Gaskets 18-0939-9

Sierra Marine Upper Gearcase Dipstick Gaskets 18-0939-9

Gasket, Upper Gearcase Dipstick, OMC, Pair

Part Number: RRA-18-0939-9

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Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

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