What year and hp is an evinrude outboard model with serial number 5521B1741?

The Evinrude outboard motor with the serial number 5521B1741 is a 1971 model with a horsepower rating of 40 hp. Evinrude uses a specific serial number format that can help identify the year and horsepower of the engine. For accurate information, it's always good to consult Evinrude's official resources or a marine mechanic.