Johnson Outboard Serial Number: Location [upd]

The serial number is usually a combination of letters and numbers, and it may be preceded by a model number or other identifying information.

Many Johnson outboards also have a model number on the same plate. For year identification, you typically need both the model and serial numbers. The serial number alone is often less useful without a model number lookup chart. johnson outboard serial number location

If the external tag is missing, damaged, or painted over, you can find identification numbers inside the engine: The serial number is usually a combination of

Serial numbers in the 1970s–1990s were often 7 or 8 digits (e.g., J1234567). The prefix letter (e.g., “J”) sometimes indicates the factory. The serial number alone is often less useful

Remove the engine cowl (the top cover) and look for a small, circular silver or brass plug (often called a "frost plug" or "freeze plug") pressed into the engine block.

This plug is typically stamped with the serial number and sometimes the model number.