Quicksilver Black Diamond Four-Blade Propellers get boats on a plane quicker and enable boats to plane at lower speeds than boats with a comparable three-blade propeller.Quicksilver's 4-blade Diamond 4 aluminum propellers provide four-blade performance and acceleration at an affordable price. The Diamond 4 is an outstanding propeller for stern drive-powered runabouts, as well as cruisers. With a Diamond 4, your boat will get on plane quicker and stay on a plane at lower speeds compared to boats outfitted with a comparable three-blade propeller. The Diamond 4 is also an excellent watersports prop.In addition to improved acceleration and mid-range performance, Black Diamond 4 aluminum propellers are also easy to repair. Each Diamond 4 propeller requires a Flo-Torq II Hub Kit for installation (sold separately).Propeller SelectionFor an overview of how to select a propeller, see our West Advisor article "Selecting a Propeller", located in the "Advice" section of this page. For a prop appropriate for your application and for hub kit selection, see theQuicksilver Propeller Selection Guide, which covers Black Diamond and other Quicksilver propellers.Key FeaturesImproved performance at an affordable priceImprove acceleration and mid-range performanceEasy to repairRequired hub kits sold separately