1、11x15in propeller, high thrust, replacement for Yamaha Outboard Engines 25‑60HP 3‑1/2in Gearcase. 2、With 3pcs blades, it can quickly cut through water, ensures low resistance during underwater propulsion. 3、The propeller blades are linked by 13pcs pure copper spline teeth, better match the engine speed, allowing your outboard to thrust faster. 4、Superior aluminum alloy, high‑density, smooth painted surface, resistant to salt and corrosion, ensure a long lifespan in harsh marine environment. 5、Higher rake angles tighten the vorticity produced by the propellers, adding to boat lift and overall performance. 6、Improved maneuvering and lift through aggressive rake and cupping. Tuned progressive pitch angles accelerate and channel water to minimize slip and increase performance and fuel economy. Item Type: Outboard Propeller Material: Aluminum Alloy + Copper Diameter: Approx. 11in Pitch: Approx. 15in Number of Blades: 3 Number of Spline Tooth: 13 Rotation: RH Fitment: Replacement for Yamaha Outboard Engines 25-60HP 3-1/2in Gearcase Replacement for T25hp...2010-newer Replacement for F30(4 stroke)...2001-2005 Replacement for 40hp(C40)...1984-newer Replacement for 48hp...1995-2000 Replacement for 50hp(Not T50)...1984-newer Replacement for F40(4 stroke)...1999-newer Replacement for F50(4 stroke)...1995-newer Replacement for 55hp...1976-1995 Replacement for 60hp...1976-1991 Replacement for F60(4 stroke)...1999-newer 1 x Outboard Propeller