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Stern Drive Parts
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Outboard Parts
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Mercury part number 31-21638.
Upper roller bearing
This bearing is for use on various 5-7 Hp Mercury Mark outboard engines. It also fits some older Mercruiser stern drives.
It is a new OEM factory part.
Please check the part numbers for your fitment needs. If you are unsure whether this part fits your model, please contact us with your serial number and we can help determine if it is right for your engine.
This fits:
Upper roller bearing
This bearing is for use on various 5-7 Hp Mercury Mark outboard engines. It also fits some older Mercruiser stern drives.
It is a new OEM factory part.
Please check the part numbers for your fitment needs. If you are unsure whether this part fits your model, please contact us with your serial number and we can help determine if it is right for your engine.
This fits:
Thank you for shopping at GreenBayProp!!
Green Bay Prop offers the most used Stern Drive & Outboard parts in Wisconsin!
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Jess-819
- Brand: Mercury
- Condition: New Other
- SKU: 31-21638
- MPN: 31-21638
- warehouse: 819
