Same Bearing On All Wheels, the bearing has a metal seal on one side and the other side a magnetic seal for reading the abs sensor

Fitment:

• Mercedes-Benz GL320 2007 - 2009
• Mercedes-Benz GL350 2010 - 2012
• Mercedes-Benz GL450 2007 - 2012
• Mercedes-Benz GL550 2008 - 2012
• Mercedes-Benz ML320 2007 - 2009
• Mercedes-Benz ML350 2006 - 2011
• Mercedes-Benz ML450 2010 - 2011
• Mercedes-Benz ML500 2006 - 2007
• Mercedes-Benz ML550 2008 - 2011
• Mercedes-Benz ML63 AMG 2007 - 2011
• Mercedes-Benz R320 2007 - 2009
• Mercedes-Benz R350 2006 - 2013
• Mercedes-Benz R500 2006 - 2007
• Mercedes-Benz R63 AMG 2007 - 2007