- Stock #267543 - Boston Whaler Guardian 19, Yamaha 150 HP Engine, Galvanized Steel Trailer, Fresh Water Use, All Maintenance Records! This 1992 Boston Whaler Guardian 19 is a great center console fishing boat. Boston Whaler fiberglass boats are promoted to be unsinkable. This 1992 performs well on the water and has been used in freshwater. She's powered by a 150hp Yamaha engine. This Boston Whaler fishing boat has plenty of space for your friends and all your gear. The boat comes with a single-axle galvanized steel trailer with the purchase of the boat. Take the opportunity to own thi... read more