Propeller DOLPHIN 9-7/8 x 11: Yamaha 20-30 hp, type F

In choosing the right propeller, it's crucial to consider the maximum RPM specified by the engine manufacturer. A general rule of thumb is 4500-5500 RPM for 2-stroke engines and 5000-6000 RPM for 4-stroke engines. A 1-inch change in pitch will raise or lower the engine's maximum RPM by about 200-300 RPM. The propeller size is indicated as follows: 10.3 x 12. The last number 12 refers to the pitch. Features: - 3-blade - 9.9 x 11.25 - Hub with 10 splines Compatibility: - Yamaha 20C-D 2-stroke 1996-1997 Type F - Yamaha 25C-D 2-stroke Type F - Yamaha 30A-G 2-stroke 1979- Type F - Yamaha F20A 4-stroke 2000- Type F - Yamaha F20D 4-stroke 2000- Type F - Yamaha F25D 4-stroke 2000- Type F Replaces original number 66-45947-01-EL Replaces product number 3211-099-11, 51416-664-010 KING'S DOLPHIN is a leading factory specializing in propellers based in South Korea, known for producing high-quality propellers for leisure boats. Established in 1985, the factory has been manufacturing propellers under its own brand and for other leading brands worldwide. Only pure aluminum is used to ensure quality, and the propeller surface is anodized, providing a significantly more durable and smoother finish than just painting.