2004 Sun Tracker Party Barge 18 Pontoon Boat. Powered by a Mercury 50hp Outboard Engine. This boat is in immaculate shape. Professionally reupholstered with the correct vinyl. Professionally cleaned - carpet in great shape. If you want a boat in like new shape this is the boat for you. Nice dual bench seats and L shaped bench seats in the back allow for plenty of seating for family and friends. This is perfect for those summer days and nights for entertaining or pulling kids on a tube.