The Precision Pulley PXT40B is equipped with a 3 7/16 XT bush and bolt, designed for optimal performance in various pulley applications. This component is made from high-quality materials, ensuring longevity and resistance to wear. The XT bush provides a secure fit, enhancing the efficiency of your machinery. Ideal for heavy-duty operations, this product complies with industry standards, making it a reliable choice for professionals. The included bolt simplifies installation, making it an excellent option for those looking to enhance their systems.