2010
Mercury model KB-!A motors where made in 1941. This model was known as the Deluxe comet.
go to www.nada.com look under consumer then outboard motors find the model number and year
A 9.9 hp Mercury outboard, serial number OB235459 is a 1988 model.
A 9.9hp Mercury outboard, serial number OB120743, is a 1987 year model.
A 35hp Mercury outboard, serial number A184641, 1985 year model.
A 9.9hp Mercury outboard, serial number OD127373, is a late 1992 year model.
A 18hp Mercury outboard, serial number 5955388 is a 1982 year model.
The dry weight of a 1983 model, 40hp Mercury outboard, is 156lbs.
The dry weight of an 1990 model, 115 Mercury outboard is 326 lbs.
A 20 hp Mercury outboard, serial number OG156340, is a 1995 year model.
Two items are required to determine the year model of a Mercury outboard, the serial number, and the horsepower rating.
A 175 hp Mercury outboard, serial number 5921200, would be a 1981 year model.