Victor Reinz 12-31306-03 Engine Valve Stem Oil Seal Set - Intake and Exhaust

OE Valve Stem Oil Seal Set for VW and Audi

Victor Reinz 12-31306-03 is an engine valve stem oil seal set built with molded rubber and metal for positive sealing performance. It is a direct-fit sealing solution for a wide range of Audi, Bentley, and Volkswagen applications, including Audi A4, A6 Quattro, A8 Quattro, TT, and Volkswagen Golf, Jetta, Passat, Touareg, and Beetle models.

As an OE supplier, Victor Reinz focuses on the component mix needed for durable engine repairs. This set contains 20 pieces and is specified for intake and exhaust valve stem sealing on select Bentley Continental and Flying Spur applications.

• Molded rubber and metal construction
• Positive sealing surface type
• Inside diameter: 0.187 in.
• Outside diameter: 0.460 in.
• Thickness: 0.370 in.
• Regular grade valve stem oil seal set
• Contains 20 pieces

Fitment Details

• Fits 2014-2016 Bentley Continental, intake and exhaust
• Fits 2015-2016 Bentley Flying Spur, intake and exhaust
• Fits 2014-2015 Audi R8
• Fits 2010-2012 Audi R8
• Fits 2012-2014 Volkswagen Beetle
• Fits 1999-2010 Volkswagen Beetle
• Fits 2010-2014 Volkswagen Golf
• Fits 2000-2006 Volkswagen Golf
• Fits 2009-2014 Volkswagen Jetta
• Fits 2000-2007 Volkswagen Jetta
• Fits 2012-2014 Volkswagen Passat
• Fits 1998-2005 Volkswagen Passat
• Fits 2013 Bentley Continental
• Fits 2012-2013 Volkswagen Golf SportWagen
• Fits 2007-2011 Audi S6
• Fits 2002-2003 Audi S6
• Fits 2010-2011 Volkswagen Beetle Cabrio
• Fits 2004-2009 Audi S4
• Fits 2007-2009 Audi S8
• Fits 2001-2003 Audi S8
• Fits 2005-2006 Audi A4
• Fits 2000-2002 Audi A4
• Fits 2001-2006 Audi A6 Quattro
• Fits 2000-2006 Audi A8 Quattro
• Fits 2000-2006 Audi TT
• Fits 2000-2006 Audi TT Quattro
• Fits 2004-2006 Volkswagen Phaeton
• Fits 2004-2006 Volkswagen Touareg
• Fits 2002-2005 Audi A4 Quattro
• Fits 2000 Audi A4 Quattro
• Fits 2004-2005 Audi Allroad Quattro
• Fits 2003 Audi RS6

What This Seal Set Helps Address

• Oil leakage past worn valve stem seals
• Blue exhaust smoke caused by oil entering the combustion chamber
• Oil consumption tied to hardened or damaged stem seals
• Loss of sealing performance during cylinder head service
• Repair needs on Audi, Bentley, and Volkswagen engines with confirmed fitment

Installation Notes and Tips

Verify engine code and cylinder head application before installation. Replace valve stem seals during top-end service when the original seals show wear, cracking, or hardening, and inspect valve guides and related sealing surfaces at the same time. For search relevance, this part number is commonly referenced as Victor Reinz 12-31306-03 and 12-31306-03 valve stem oil seal set for Audi A4, Audi TT, and Volkswagen Golf applications.

This part cross-references MAHLE SS45940 for the same application.

Quality Assurance

Victor Reinz is an original equipment supplier known for OE-level gasket and sealing technology. Part number 12-31306-03 is engineered as a sealing system component set for consistent fit and long-term repair performance across confirmed Audi, Bentley, and Volkswagen applications.