1.8T 20V Oil Pump Drive Chain. With an defective chain you can get an engine damage. Sometimes can make the chain some noise. The advantages: -highest Quality -long life -Short delivery time Manufacturer Information about the manufacturer BAR-TEK BAR-TEK Motorsport GmbH Im Rauschen Auel 3, 51491 Overath-Brombach, Germany info@bar-tek.com