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Used Outboard Parts & Fresh Water Sterndrive Parts

$24.99
Part number  18-3916.

Sierra Piston Ring Set

This piston ring set is for use on various 35-140 HP Mercury Mariner outboard engines.

Includes three .015 O.S piston rings.

New factory part.

Replaces Mercury Marine 39-78811A12, 45204A12.

Please check the part numbers for your fitment needs.  It is your responsibility to make sure this part is correct for your application. If you are unsure whether this part is correct for your model, please contact us with your engine HP, model/serial number and we can help determine if it is right for your engine. We are happy to help!

Thank you for shopping at our store!!

Christine

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