THE ANALYSIS OF SPARE PARTS SUPPLY CONTROL: A CASE STUDY

Abstract

PT. Sumber Berlian Motors is a company engaged in services and trade or 3S (sales, service, spare parts). In the process of buying and selling spare parts, it is closely related to inventory, to optimize the control of spare parts inventory by using historical data from the previous year, namely the Economic Order Quantity (EOQ) method. The purpose of this study is to determine the application of the Economic Order Quantity (EOQ) method to help determine the economic amount in each order to minimize the total cost of inventory. The results of this study, inventory control for oil filters, fuel filters, and brake shoe products are more efficient when using the EOQ method, proven to be able to save inventory costs of Rp. 405.819, Rp. 343.864, and Rp. 138.074, with the number of orders optimally 708 pcs, 568 pcs, and 144 pcs in each order in a year. The company must also hold a safety stock of 237 pcs, 198 pcs, and 27 pcs, and Reorder points when the stock is 553 pcs, 462 pcs, and 63 pcs to anticipate delays in merchandise.