Description: 【Metal Construction】: Crafted from quality Aluminium, this tire changer cylinder pistonensures long term durability and reliable performance in demanding environments 【Precision Fit】: Available in 2 outer diameters,186mm or 200mm, this Air Cylinder Piston is engineered to fit seamlessly into your tire changer's pneumatic cylinder, providing a snug fit for efficient working 【Enhanced Performance】: The threaded center hole design allows for easy installation and secure attachment, enhancing the overall functionality of your tire changing equipment 【Versatile Compatibility】: Ideal for use with various tire changers, this component is an essential addition to any professional or home garage setup focused on efficient tire maintenance 【Single Unit Packaging】: Each purchase includes 1 piece of the cylinder piston assembly, ensuring you have exactly what you need to upgrade or replace parts in your existing system Specification: Material: Aluminum Size Chart: Diameter of threaded hole: M18 Outer Diameter: 18.6cm/7.32inch or 20cm/7.87inch (optional) Package Includes: 1 Tire Changer Air Cylinder Piston Assembly Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.