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Thrust Washer For New Prop

PotomacBassin
in Bass Boats, Canoes, Kayaks and more

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I have a 2012, 115 hp Optimax and I'm upgrading from my standard Mercury aluminum prop (12.75 x 21P) to a Mercury stainless prop (13.5 x 21P).  Does anyone know if my current thrust washer will work with this new prop?  Or will I have to purchase a new one. 

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    • Super User

    The center bore should be exactly the same as far as splines and stuff goes. So your old washer will be fine. This is my experience anyhow.

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    • Author

    Thanks man.  I figured it should be especially since it's Mercury old prop to Mercury new prop.  Anyone else have any other experience with this? 

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