Every model has its personal unique set of parts that suit it. Simply click your manufacturer underneath for instructions on finding your model or serial number. The serial number tag is situated around the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, located among the thumb screws above https://ebay-outboard-motors-yama52850.p2blogs.com/35002574/about-for-sale-by-owner-cayman-islands