Boat propeller Black Max®

fixed-pitchoutboard and sterndrive3-blade

Well Balanced, for Better Boating A perfect match for engines under 250 hp. Rotation RH Performance vent system (PVS) No Boat types Houseboat, Inflatable - Soft Hull, Inshore Fishing, Pontoon Material Mercalloy Fits All outboards, Alpha drive Recommended for Engines less than 250hp, Top speed less than 50 mph / 80 kph Flo-Torq® II: Hidden Protection Mercury's Flo-Torq propeller hub might just be the most important part you never see. Not only does it flex during shift changes, reducing noise and vibration. If your prop hits an underwater object, it sacrifices itself to save your lower unit. Just pop in a new hub and you're back on the water, no service call needed. The Flo-Torq hub also makes Mercury propellers compatible with most engines on the market while also providing unmatched corrosion protection. Mercalloy®: Patented Performance We couldn't find an aluminum alloy good enough for our propellers. So we invented one: Mercalloy Aluminum. So unique it’s patented, Mercalloy makes for higher-strength castings. Which allows for thinner blades that create less drag. Result? Optimal performance, optimal durability, better boating. Built with pride in Fond du Lac, Wisconsin. Trusted everywhere. How do you make a Mercury® propeller? One exacting step at a time. It starts with a prop mold. Cast in specially engineered hot wax using a 5,000-year-old technique. Reinforced with two ceramic finishes in an application process that takes two full days. Steam-heated in an autoclave at 325 degrees Fahrenheit and 100 PSI of pressure.