The serial number, along with the horse power for Mercury outboards, will tell you the year model only. The serial number, and hp rating of a particular engine, is compared to a model year chart to determine the year of manufacture. Models produced in the early 80's and later, also have a model and year designation printed on the serial number label. Example.... 90ELPTO, 90hp, electric start, power trim, oil injected.
An 65 hp Mercury outboard, serial number 4266564 is a 1975 year model.
All that can be determined by the serial number only, is that this engine is a pre 1986 year model.
The 20HP Mercury outboard with serial number 9137627 was made in 1979.
The serial number 9137327 for a 20 HP Mercury Outboard is not not listed in the Mercury Marine parts catalog.
To determine the age of a Mercury outboard, you will need to know the engine serial number, and the horsepower rating.
A 9.9 hp Mercury outboard, serial number OB235459 is a 1988 model.
A 35hp Mercury outboard, serial number 6445947, would be a 1984 model.
Two items are needed to determine the age of a Mercury outboard, the serial number and the horsepower rating.
In addition to the serial number, to determine the year model of a Mercury outboard, the horsepower rating is needed.
A 9.8 hp Mercury outboard, serial number 2389278, is a 1968 year model.
A 9.9 hp Mercury, serial number OG031959, is a 1995 year model outboard.
Two things are needed to determine the age of a Mercury outboard, the serial number, and the horsepower rating.