1998 Mainship 31 sedan bridge

- stock #sedan bridge powered by twin 315 hp yanmar diesel engines! the mainship sedan 31 is a boat with many great features for cruising, fishing and staying overnights. the twin diesel yanmar 315 horsepower engines are a very desirable package. the 4.2-liter engines are compact with a high output compared to the competition. the smaller displacement engines will allow you to sip fuel while underway.