ApplicationCompatible for Opel Astra G 1998-2009 compatible for Opel Astra H 2004-2014 compatible for Opel Astra H L69 2007-2014 compatible for Opel Astra H Sport Hatch H 2005-2010 compatible for Opel Astra H Twintop H 2005-2010 compatible for Opel Zafira A 1999-2005 compatible for Vauxhall Astra MK IV 1998-2005 compatible for Vauxhall Astra MK V 2004-2012 compatible for Vauxhall Astravan MK IV 1998-2006OEMandPart NumberFront Right: 542290 5542454 5542063 90544003 93184518 93173240 Front Left: 542291 5542453 5542062 90544002 93184517 93173238SpecificationPackage include: 1 Pair as picture shows Vehicle placement: Front Right & Left Type: Disc Brake Caliper Piston diameter: 52 mm Fit for brake disc thickness: 25mm Condition: 100% brand new, ready to install Warranty: one yearNote-Instruction is not included. Professional installation is recommended -Contact us please for whatever we can help