The objective of this research was to propose a guideline for improving the automotive- part
delivery process of an automotive-part manufacturer (Tier 1) to car-assembly-lines, an automotiveassembly
factory so as to enhance levels of the customers’ satisfaction. In the manufacturing system
based on ‘Just in time’ (JIT) criterion in the delivery process to delivery parts on time. Based on a
survey on the current company’s delivery process, the major weaknesses were delivery errors and the
no flow process in delivery. This study aimed at designing layout and working process of the
warehouse and shipping departments. The new design result of warehouse layout and working process
was evaluated for proving the efficiency by applying for the actual work of packaging type bumper
rack. Each order was arranged on time before the truck arrived 100% that is possible of making the
actual operations to the others. In conclusion, this research could determine the cause of the problem
and offer a solution that can be applied to operational reality.