go to this site with your serial no.www.discount-marine-parts.com/ob_gamefisher.html - 6k
my serial # is 81885 on a Silverline boat.
1969
1980
1986
mine is 1980
The letters in the model number designate the year model, when compared to a model / year guide.
The year is 1992 -the "en" in the model number identifies the year.
1972.
CD 24 is a 1967 model.
1965 18 hp
its a 1956
1991 model, 15 horsepower