Part Type: Accessory Drive Belt Idler Pulley. 1998 Audi A3 Engine: 1.9LL; 78 mm O.D. Pulley; L4 1.9L (1896cc);. 1998 Audi A3 Engine: 1.9LL; 78 mm O.D. Pulley; L4 116CID 1.9L (1896cc);. 1999 Audi A3 Engine: 1.9LL; 78 mm O.D. Pulley; L4 1.9L (1896cc);.
