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Used Outboard Parts & Fresh Water Sterndrive Parts

$1.35

Mercury part number: 10-21304

Mercury Screw | Rocker Valve Cover to Cylinder Head (5/8")

This screw is for use on vintage Mercury Mark outboard and Mercruiser stern drive engines.

New OEM part, old stock.

Fits:
 190 GM 283 V-8 1963-1964 1564539 THRU 1730903 (MERCRUISER)
 225 (2 BBL.) GM 327 V-8 1963-1966 1539620 THRU 2278646 (MERCRUISER)
 MARK 75 ALL (MARK)

It is your responsibility to make sure this is the right part for your application. 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. 

Thank you for shopping at Boats.Parts!!

Boats.Parts offers the most used Stern Drive & Outboard parts in Wisconsin!

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