Rebuild kit for Combination Remote Master Cylinders. Available in bore sizes from 5/8" to 1-1/8th inch. Contains piston, seals, snap ring and replacement dust boot assembly. All parts necessary for maintenance and repair of your master cylinder.Pit Stop USA offers Wilwood 5/8" Combination Master Cylinder Rebuild Kit 260-3880 at low everyday prices. Be sure to check out all of our products from Wilwood Engineering including Wilwood Engineering Master Cylinder Parts and Wilwood Engineering Service Parts.