ApplicationCompatible for Opel Signum 2003-2008 Hatchback compatible for Opel Signum 2003-2017 Hatchback compatible for Opel Vectra C 2004-2017 Estate compatible for Opel Vectra C 2004-2017 Saloon compatible for Opel Vectra CC 2002-2009 Saloon compatible for Opel Vectra C C 2003-2009 Estate compatible for Opel Vectra C GTS C 2002-2016 Hatchback compatible for Opel Vectra C GTS C 2002-2017 HatchbackSpecification- Quantity: AS picture shown - OEM number: VKBA6507, 1603255,1603295, 93178661, 93186388 - Placement on Vehicle: Front - Inner Diameter: 31mm - Outer Diameter: 137mm - Width: 85mm Pay attention to check the plug model.Note* Professional installation is highly recommended (No Instruction Included) * For any needs please contact us.* Please make sure ABS Sensor Connector is consistent before purchasing！