Fitment: Yamaha
Key Number: 451
The ignition key number is a 3 digit number stamped both into the key itself & on one of the flat surfaces on the ignition switch. To determine your key number simply look at the key (you may have to pull the boot/cover back) or find the 3 digit number on the side of the ignition switch.
![FILTER [2F3]](https://www.boatbrakecomponents.com/wp-content/uploads/2026/11/filter-2f3.webp)
