Brake dust shield, a protective plate that sits behind the brake and protects it against dirt and water spray.
OE/GM number: 543059
Alternative number: 90375289
Fits: Astra F 1991-2005 (incl. Astra F Classic), Corsa B 1993-2002, Tigra 1994-2000, Calibra 1990-1997, Combo B 1994-2001