This febi bilstein timing belt tensioner is an OE matching quality spare part, providing reliable performance for your vehicle. It is designed as a tensioner pulley for the timing belt and comes as a single unit. Key specifications include a width of 31.5 mm and 36 mm, an outer diameter of 68 mm, and a weight of 0.692 kg. This part is suitable for a wide range of Audi, Seat, Skoda, and VW models, including the VW Transporter T5, VW Golf Mk4 and Mk5, and Audi A3. Please use the vehicle identification number to confirm compatibility before purchase. Original OE numbers for comparison include Audi/Seat/Skoda/VW 038 109 243 M. Among the many compatible OEM numbers are Ruville 55739, NTN-SNR GT357.51, SKF VKM 11250, GATES T43091, and Continental / Contitech V55739.