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- Sierra 18-3723 Stainless Steel Lock Nut 7 / 16-20 for Mercruiser Alpha Drive
Sierra 18-3723 Stainless Steel Lock Nut 7 / 16-20 for Mercruiser Alpha Drive
Product Code: SIE18-3723
The Sierra 18-3723 is a stainless steel lock nut designed for Mercruiser Alpha Drive systems. It offers reliable performance and corrosion resistance for marine applications.
- Fits Mercruiser Alpha Drive
- Replaces OEM part numbers: Mercruiser 11-45592, Mercury, Mariner, GLM 21190
- Thread size: 7/16-20
- Durable stainless steel construction
- OEM replacement for propeller nut