This engine oil drain plug is designed to match the fit and function of an original equipment plug on specified vehicles. It is engineered to replace a missing or damaged plug and help ensure a secure seal. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Audi A6 Quattro: 2000, 2001, 2002, 2003, 2004, 2005, 2006] - [Audi A8 Quattro: 2000, 2001, 2002, 2003, 2004, 2005, 2006] - [Audi Allroad Quattro: 2003, 2004, 2005] - [Audi RS6: 2003, 2004] - [Audi S4: 2004, 2005, 2006, 2007, 2009] - [Audi S6: 2002, 2003, 2004] - [Audi S8: 2001, 2002, 2003] - [Volkswagen Phaeton: 2004, 2005, 2006] - [Volkswagen Touareg: 2004, 2005, 2006, 2007]