You could probably use about any Honda master cylinder. You could probably use one off a different brand as along as the bolt that holds the brake line on is the same size. If you use one off a different brand, make sure the brake lever is on it, because the brake levers are made different on most brands and the Honda lever won't work on the other brands of master cylinders.
A forum community dedicated to Honda TRX ATV owners and enthusiasts. Come join the discussion about reviews, modifications, classifieds, troubleshooting, maintenance, and more! Open to all models across the 500, 400, 300, and 200 series.