Powerhead off a Mariner-branded 9.9 HP 2-stroke outboard; these motors were built by Yamaha and all the parts interchange exchept for the fuel line connector. Same powerhead goes on the 15 HP models, too. Motor is a long shaft but lower unit is NFG. Take whole motor for $2 Bills - if you have one of these outboards you'll want the carb, ignition system, recoil starter, etc. for spare parts. Call to arrange pickup.