It's an Olds 403.
That is the model number not the serial number.
Johnson outboard motor Serial Number J2575938 Question What Year is this Motor and is it possible to get the Model Number
how old is my mercery 25 hp motor with serial number 9526046
my serial # is 81885 on a Silverline boat.
With that serial number it would be a 1986.
i have a mercury outboard motor the serial# is G034632
Check serial number on the left side of the motor where it bolts to the transom. Mine has a metal tag with model and serial number.
How old is my Kiekhaefer Mercury 7.5 boat motor Serial number 3374590
The year model of an Evinrude outboard cannot be determined from the serial number, but rather from the model number.
Contact your local Mercury Dealership they can tell you everything about the motor with a good serial number.
what year is this mercury outboard motor serial number OB362432
The horsepower, in addition to the serial number, is needed to answer this question.