How old is an eska 5 hp motor serial number 6518394?

To determine the age of an Eska 5 hp motor with the serial number 6518394, you would typically need to consult Eska's manufacturing records or a reference guide specific to their serial number system. Unfortunately, without access to those records, it's challenging to pinpoint the exact age based solely on the serial number. Generally, Eska motors were produced from the 1950s to the 1990s, so it could fall within that timeframe. For a precise identification, consider reaching out to vintage motor enthusiasts or forums that specialize in Eska products.