The serial number tag is found about the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, Situated in between the thumb screws above the steering tube. Luckily, PartsVu has a prosperity of resources that will help you find the Mercury outboard parts you need to keep your engine https://yamahaoutboardmotorsforsa67642.blogthisbiz.com/43991781/the-smart-trick-of-monaco-motor-coach-for-sale-that-nobody-is-discussing