Feature:1. Applicable Model: Boat motor propeller replacement for 820HP outboard engines. Fit for 2 1/2in Gearcase. Fit for DF8A DT9.9 DF9.9 DF9.9A DT15 DF15 DF15A DF20A.2. Low Resistance: The aluminum alloy propeller blade has 3 sharp blades, and the blade profile is subject to almost zero resistance when propelling underwater, which can quickly cut the water surface and advance forward.3. 10 Splines Teeth: The propeller blades are linked by 10 spline teeth, and the spline teeth are forged from highdensity pure copper, which better matches the speed of the engine, allowing your yacht to charge faster on the water.4. Seawater Resistance: The surface has been painted, which is smooth and clean, and resistant to salt. Even if it is immersed in seawater for a long time, the propeller blades will not be damaged.5. Positive and Negative Rake Design: 9 1/4in diameter x 10in pitch, positive rake benefits from normal bow lift to permit the use of a larger diameter propeller, while negative rake can provide extra blade strength for use in very high speed applications.6. Excellent Performance: Excellent bow lift, acceleration as well reducing slip, increasing bite. A cupped propeller will exhibit very high efficiency at high speeds as well as minimize cavitation under heavy loads.Specification:Item Type: Outboard Propeller Material: Aluminum alloy + copperPropeller Diameter: Approx. 9 1/4inPitch: Approx. 10in/25.4cmBlades: 3Spline: 10 teethRotation Direction: RightFitment: Replacement for SUZUKI 8-20HP outboard EnginesFor 2 1/2in GearcaseFor DF8A(4 stroke)...2010-newerFor DT9.91983-1987For DF9.9(4 stroke)...1996-newerFor DF9.9A(4 stroke)...2010-newerFor DT15...1983-1988For DT15C...1989-1997For DF15(4 stroke)...1996-2012For DF15A/DF20A...2013-newer.Package List:1 x Outboard Propeller