Pro-X 01.2321.D Piston Kit - Standard Bore 66.38mm brake-brake-cooler Tensile Strength: 4

Tensile Strength: 4

1999 Yamaha YZ400F

within Alpinestars Racing Development Center

Made with heat-treated

Stainless steel body is stronger and will not corrode

Pro-X 01.2321.D Piston Kit - Standard Bore 66.38mm brake-brake-cooler Tensile Strength: 4Bore: 66. 38mm Sizing: Standard Bore Nikasil Piston Size. Molycoated Skirt. Excellent economic alternative when you are looking for an OEM quality replacement piston. Mainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high quality standards. Sleeved cylinder piston kits are available in standard size and a Wide range of oversizes. Plated cylinder piston kits come in standard size, as well as in