This Febi Bilstein Aux Belt Pulley is designed for VW and Audi vehicles, ensuring OE matching quality and fit. It is a deflection/guide pulley for v-ribbed belts, with an outer diameter of 65 mm and a width of 28 mm. The pulley is made of plastic and weighs 0.156 kg. It comes with a screw and is a new unit. This part is compatible with various Audi, Skoda, and VW models, including the Audi A3 quattro, TT Coupe quattro, TT Roadster quattro; Skoda Superb II 4x4; and VW Eos, Golf 5, Golf 5 4motion, Passat 4, Passat 4 4motion, Passat 4 syncro, Passat 5, Passat 5 4motion, Passat 6 4motion, Passat CC CC, and Passat CC CC 4motion. Cross-references include OE numbers for Audi, Skoda, and VW, as well as OEM numbers from SKF, Ruville, Dayco, NTN-SNR, and GATES.