This brake master cylinder/left switch is a genuine OEM part made by Yamaha, a trusted and renowned brand in the world of snowmobile parts. It fits the 04-05 Yamaha Rx1 Warrior Rxw10 model and is made in Japan, ensuring high quality and durability. With this brake master cylinder/left switch, you can be confident in the safety and reliability of your snowmobile's braking system. Don't settle for anything less than the best when it comes to your Yamaha snowmobile. Upgrade your brake system with this genuine Yamaha part.