For sale is a master cylinder, brake caliper, shark fin, caliper mounting bracket, and a rear brake line that came off of a 2006 yz450f. Will fit many models not sure of the exact models though. Selling for parts, however it works as should just needs the pad clips, a rubber boot, and a pin for the brake pads (see pics) the parts to get this complete is roughly $15.00 off Motosport. I got a whole new assembly off a parts bike so I didn't need this one. Free shipping in US ONLY. Good luck and thank you! 

Please note, I will be out of town till the 31st, and will ship item out that afternoon if it sells.