Need an exact replacement prop for your Mercruiser? This is the genuine Quicksilver (Mercury Marine's parts brand) OEM propeller, part number 48-78114Cp1. The specs are BLMX 16R13Cu. If your old prop is dinged up, has a spun hub, or you just need a spare, this is the right part to get your boat's performance back. It's made to Mercruiser's factory specifications for fit, balance, and durability. Always match the part number exactly to make sure it's compatible with your specific outdrive model. Slap this on, and you'll be back to smooth cruising and optimal fuel efficiency in no time. A must-have for any boat owner who wants to keep their Mercruiser running right.