Johnson/Evinrude
The model number tag is located on the top outside edge of the CLAMP BRACKET; or, on top of the SWIVEL BRACKET (port or starboard).
OMC Engines and Outdrive
The model and serial numbers of the vertical drive should be located on the engine model and serial number plate. If the vertical drive model and serial numbers are not recorded with the engine model and serial number, they can be found on a plate located on the vertical drive. The transom mount model and serial number plate is located on the inner transom plate.
Mercury Outboards
The serial number tag is located on the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, located between the thumb screws above the steering tube.
Mariner Outboards
The serial number tag is located on the top outside edge of the CLAMP BRACKET; or, on top of the SWIVEL BRACKET (port or starboard).
MerCruiser Engines
The serial number tag is located near the STARTER, by the flywheel housing; or, on the ROCKER ARM or FLAME ARRESTOR COVER. Transom plates: The serial number tag is located on the INNER TRANSOM PLATE inside the boat; or, on the UPPER SWIVEL PIN.
MerCruiser Sterndrives
The serial number tag is located on the UPPER DRIVE SHAFT HOUSING (starboard side or on the back of the housing).
Yamaha Outboards
The model number tag is located on the top outside edge of the CLAMP BRACKET; or, on top of the SWIVEL BRACKET (port or starboard).