The lifespan of an Evinrude outboard motor can vary depending on several factors, including the type and size of the motor, how well it is maintained, and the type of use it receives. In general, however, Evinrude outboard motors are known for their durability and reliability, and many owners have reported getting many years of use out of their Evinrude motors. With proper maintenance and care, it is not uncommon for Evinrude outboard motors to last for several decades.