Quicksilver Black Diamond Modular Propeller delivers great performance and value! The Black Diamond Aluminum Propeller uses the Quicksilver Flo TorQ Hub System, so it's easy to replace or repair. The Black Diamond Prop is cast with an exclusive aluminum alloy with a durable high-gloss Phantom Black finish for toughness and exceptional corrosion resistance. This all-purpose 3-blade propeller is recommended for use on boats with up to 250 hp and with a top speed of less than 50 mph. This modular propeller uses the Quicksilver Flo TorQ Hub System, so you can easily switch props, change pitch, change from aluminum to stainless, or replace a bent propeller. It also works with the Michigan Wheel XHS Hub Kits. This is the propeller housing with blades only. Hub Kits are sold separately.• Quicksilver Part Number: QA2014X• Quicksilver Black Diamond Prop Series A• Aluminum• 3 Blades• Diameter: 15.5"• Pitch: 18"• Right Hand Rotation For use on boats with up to 250 hp Exchangeable hub system Prop Only. Hub Kit Sold Separately. | Black Diamond 3-Blade Modular Prop / Aluminum 15.5 dia x 18 pitch RH