Spare parts are essential components kept in reserve to replace worn-out or damaged parts of machinery, vehicles, or equipment. They ensure that machines can be repaired quickly and continue operating without long downtime. In industries such as automotive, manufacturing, and electronics, having the right spare parts readily available is crucial for maintaining productivity and reducing operational costs. Spare parts can be original equipment manufacturer (OEM) parts or aftermarket parts, with varying quality and price points. Inventory management of spare parts plays a vital role in supply chain efficiency and helps avoid both shortages and excess stock. The availability of spare parts directly impacts the lifespan and reliability of any mechanical system. In sectors like automotive repair, spare parts range from simple items like filters and belts to complex assemblies like engines or electronic control units. Technological advances have introduced smart and customized spare parts, improving performance and compatibility. Additionally, proper documentation and labeling of spare parts facilitate easier identification and use. Overall, spare parts are indispensable for sustaining the functionality and safety of equipment across various industries.