I n Indonesia, there are many manufacturing companies engaged in the metal casting(foundry) field with the final result of their production in the form of automotivecomponents, one of the companies is PT. XYZ which was founded in 1975. Theproduction type at PT. XYZ is using a make to order system, which is where theproduction of the products is according to the consumer demand. There is a problemwhere the production demand are not achieved in the Plant-II area, which can becaused by waste activities on the production floor. The research aims about toreduce the difference between demand and fulfillment demand focus on January2020, identifying waste, so that it will help to reduce waste and to increase theefficiency of the production process. Make an improvement and this research isusing a lean manufacturing approach value stream mapping, and process activitymapping are tools used to identify waste. HUB 43502-0W020 is the representativeproduct observed in plant II, was chosen because it had the highest productiontarget. This research is using a lean manufacturing approach with value streammapping, and process activity mapping are tools used to identify waste. The stagesof this research began with making a process flow map to identify the flow of theproduction process and calculate production capacity. Followed by the making ofcurrent value stream mapping with a Manufacturing Lead Time (MLT) for 570,82minutes and identifying three types of waste; waiting, transportation, andoverprocessing. Further waste identification is using process activity mapping, andit is proven that there are waste in 13 activities with a total time of 66,27 minutes.Proposing to add material handling trolley, reduce activity and add impact wrenchtools are needed to gain an improvement. The results of the improvements aredescribed in the future value stream mapping with the reduction of theManufacturing Lead Time (MLT) for 518,51 minutes.