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Used Outboard Parts & Fresh Water Sterndrive Parts

$19.78
Part number  18-3916.

Sierra Piston Ring Set, 2.890

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. 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. Thanks for looking!!!

Thank you for shopping at GreenBayProp!!

Feel Free to Call and order. Green Bay Prop offers the most used Stern Drive & Outboard parts in Wisconsin!



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