Porsche OEM part number 987-573-099-00 is a factory original Boxster Discharge line. This is a genuine Porsche part, the manufacturer's recommended part for your vehicle. Porsche OEM part number 987-573-099-00 is illustrated in the image on this page as Item 10. Save money on all of your Porsche replacement parts when you buy genuine OEM parts from Porsche of Tampa Parts and benefit from low internet pricing, fast delivery, and the manufacturer's warranty on genuine parts.