ANALISIS PENERAPAN METODE EOQ (ECONOMIC ORDER QUANTITY) BIAYA PERSEDIAAN SPARE PART FILTER OLI MESIN PADA PT INTRACO PENTA PRIMA SERVIS CABANG SAMARINDA

Yusti Randi, Analysis of the Application EOQ (Economic Order Quantity) Method of Inventory Cost of Engine Oil Filter Spare Parts at PT Intraco Penta Prima Servis Samarinda branch. Under guidance of Mrs. Titin Ruliana as supervisor I and Mrs. Camelia Verahastuti as supervisor II. Inventory is one thing that is very important for PT Intraco Penta Prima Servis Samarinda branch which is engaged in providing heavy equipment and after-sales spare parts, therefore the total inventory of engine oil filters is calculated at the end of 2019 there were 1280 pcs resulting in a total inventory cost of Rp.266,813,168.00. This study aims to minimize the cost of supplying Engine Oil Filters at PT Intraco Penta Prima Servis Samarinda branch. The method used in this research is to calculate Economic Order Quantity then analyze and compare the total cost of inventory with the company's method in order to get a minimum inventory calculation and according to customer needs without excess stock of engine oil filters in the warehouse. The application of the Economic Order Quantity method in the calculation of engine oil filters inventory by calculating that the maximum inventory in 1 year using the application of the Economic Order Quantity method is 1068 pcs of engine oil filters with a total inventory cost of Rp. 222,632,368.53. so it can be seen that the number of economic orders is 89 pcs for each order per month. The safety stock value for engine oil filter supplies is 61 pcs and reorder points can be made when the inventory is 146 pcs. There is a difference in the value of the inventory cost of Rp.44,180,799.47 which is smaller than the calculation of the company's conventional inventory method with total cost Rp.266,813,168.00. This study concludes that the calculation of engine oil filter inventory using the Economic Order Quantity method can minimize the cost of engine oil filter inventory at PT Intraco Penta Prima Servis Samarinda branc