acdc96 - Thanks for the info - Hmmm - If I read it, right side up it reads 9x8. Also. my prop is metal (the one on ebay, is a plastic one), so I don't know if mine is an aftermarket one. It is painted and matches the color of the motor (kind of a dark charcoal gray) - and yep, when I pulled off the prop, just now, the prop seal say Mercury, right on it. Time for me to do more research