Depreciation: New engines depreciate immediately. By purchasing used, you steer clear of the steepest depreciation and have additional price for your cash. The serial selection tag is located around the SWIVEL BRACKET (port or starboard); or, Look at the INSTRUCTION PLATE, Found between the thumb screws over the steering tube. https://rylanbkrwb.activosblog.com/33839300/used-150-to-200-hp-outboard-motors-for-sale-options