1978
The 20HP Mercury outboard with serial number 9137627 was made in 1979.
1970
1971
1969.
An 20 hp Mercury outboard, serial number 3143107, is a 1971 year model.
A 20 hp Mercury outboard, serial number 5334211, would be a 1979 year model.
A 20 hp Mercury outboard, serial number OB152174, would be a 1987 year model.
The serial number 9137327 for a 20 HP Mercury Outboard is not not listed in the Mercury Marine parts catalog.
To determine the year of a Mercury 20hp outboard motor with the serial number B126065, you would typically refer to Mercury's serial number lookup or a specific year range chart. Generally, the letter "B" in the serial number indicates the model year, which for Mercury outboards often corresponds to the early 1980s. However, for precise dating, it's best to consult an official Mercury resource or database.
The serial number 3317055 for a Mercury 200 20hp outboard engine indicates that it was manufactured in 1977. Mercury typically uses a system where the first two digits of the serial number can help identify the production year. For precise confirmation, you may also check with a Mercury dealer or refer to the manufacturer’s archives.
your motor is a 1975 200 20hp you can get more info here: http://www.autorepairmanuals.biz/site/573683/page/599300
To determine the year of a Mercury Kiekhaefer 200 20hp outboard motor with the serial number 2439731, you can refer to the serial number chart provided by Mercury. Typically, for the 200 series, serial numbers in the range of 2430000 to 2450000 were produced around the mid-1960s. Thus, it is likely that this particular outboard motor is from the year 1966.