Thread belt tensioner for G60 and 16VG60. This belt tensioner is continuously adjustable to the correct preload of the belt. Does only fit with the OEM (standard) 6PK belt. Nice OEM look and anti corrosion. Manufacturer Information about the manufacturer BAR-TEK BAR-TEK Motorsport GmbH Im Rauschen Auel 3, 51491 Overath-Brombach, Germany info@bar-tek.com