Features 1.11‑1/2x11in propeller, high thrust, perfect replacement for Yamaha Outboard Engines 40HP. 2.It has 3 blades, which can quickly cut through water, ensures low resistance during underwater propulsion. 3.High‑density and durable aluminum alloy, smooth painted surface, resistant to salt and corrosion, ensure a long lifespan in harsh marine environment. 4.Higher rake angles tighten the vorticity produced by the propellers, adding to boat lift and overall performance. 5.Improve 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. Specification Item Type: Outboard Propeller Material: Aluminum Alloy + Copper Diameter: Approx. 11-1/2in Pitch: Approx. 11in Number of Blades: 3 Features: Pin Drive Rotation: RH Fitment: Replacement for Yamaha Outboard Engines 40HP Package List 1 x Outboard Propeller