Serial number 1999327
Thank you for your reply, the HP is 7.6 Mercury Thunderbolt In order to determine the year model for a Mercury outboard, in addition to the serial number, the engine horsepower is needed as well.
An 85 hp Mercury outboard, serial number 3858432, would be a 1973 year model.
In addition to the serial number, the horsepower rating is needed to determine the year model.
Merc 850 854590512 thru 4831998 1977
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, 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.
A 9.9hp Mercury outboard, serial number OB120743, is a 1987 year model.
An 20 hp Mercury outboard, serial number 3143107, is a 1971 year model.