Mercury - Black Max Aluminum Propeller - 3-Blade - 9.9 HP Bigfoot / Command Thrust FourStroke (2005 and newer), 9.9 HP Pro Kicker (all years), 15 - 20 HP FourStroke (2008 and newer) - 9.5 Dia. - 8 Pitch - 48-897618A10. The Black Max aluminum propellers are standard equipment on most boats with Mercury/Marine/MerCruiser power. Recommended for use on oats with up to 300 horsepower and with a top speed of less than 50 MPH. Pontoon style props available.. High quality die cast aluminum. Attractive and durable high-gloss Phantom Black finish. Easy to maintain & repair. This Mercury Black Max aluminum propeller fits the following Mercury outboard models:. 9.9 HP Bigfoot / Command Thrust FourStroke (2005 and newer). 9.9 HP Pro Kicker (all years). 15 - 20 HP FourStroke (2008 and newer)