ABC analysis of stock planning is a selective inventory control technique used in the operation and maintenance of construction equipment to classify spare parts, tools, and consumables based on their value, importance, and usage frequency. The fundamental principle is that not all items in inventory require the same level of control or investment. By categorizing items into A, B, and C groups, construction managers can allocate resources efficiently, reduce unnecessary stock holding, and ensure the availability of critical equipment components. This method improves cost control, minimizes downtime, and enhances maintenance planning. In construction equipment management, stock planning involves maintaining spare parts such as hydraulic components, filters, cutting edges, engine parts, lubricants, electrical fittings, and safety accessories. ABC analysis helps identify which items require strict monitoring and which can be managed with simpler control systems. The classification is generally based on annual consumption value, calculated by multiplying the unit cost by