

In this case, look for the silver core plug on the powerhead with the model and serial number.

The number may be worn or scratched off of older motors. Many times there is a quarter-size silver piece with engraved numbers. It is also on top of the swivel bracket housing port or starboard.

The model number tag is on the top-outside edge of the clamp bracket. The engine number on a Johnson outboard motor is usually between eight and 12 characters, and each one provides specific information about the motor. They also need the model number when ordering accessories and parts. Another way to find what kind of Mercury outboard engine you have Boat owners often need more than just their outboard motor's model name.
