Home / Automotive / 3B0121321 Coolant Reservoir Cap, Expansion Tank Cap | Compatible with 1999 - 2018 Audi A3 A4 S4 TT | Volkswagen Amarok Beetle Bora Crafter Van Eos Gol GTI Jetta Passat Touareg etc

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3B0121321 Coolant Reservoir Cap, Expansion Tank Cap | Compatible with 1999 - 2018 Audi A3 A4 S4 TT | Volkswagen Amarok Beetle Bora Crafter Van Eos Gol GTI Jetta Passat Touareg etc

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Description

When Should I Replace My Engine Coolant Reservoir Cap? - The radiator cap is a sealing cap installed on the radiator or expansion tank filler port, it is not only a simple cap, but also has a pressure regulating function and is an important part of the cooling system. If your car is experiencing problems such as coolant leaks, engine overheating, abnormal cooling system pressure, and a deteriorated or damaged radiator cap, you may need to replace your coolant cap.

Replacement Part Numbers - 3B0121321. This radiator cap replacement is used on many cars. Please check the detailed description or enter Year/Make/Model to check your compatibility before purchasing this expansion tank cover.

Compatible with Select Audi Models - 2011 - 2017 Audi A1, 2006 - 2016 Audi A3, 2006 - 2016 Audi A3 Quattro, 2016 Audi A3 Sportback e-tron, 2005 - 2015 Audi A4, 2013 - 2016 Audi A4 allroad, 2005 - 2015 Audi A4 Quattro, 2008 - 2016 Audi A5, 2008 - 2017 Audi A5 Quattro, 2012 - 2017 Audi A6, 2012 - 2017 Audi A6 Quattro, 2016 - 2017 Audi A7, 2012 - 2017 Audi A7 Quattro, 2013 - 2016 Audi allroad, 2009 - 2017 Audi Q5, 2007 - 2008 Audi RS4, 2014 - 2017 Audi RS7, 2004 - 2012 Audi S3, 2005 - 2015 Audi S4, 2008 - 2016 Audi S5, 2013 - 2017 Audi S6, 2013 - 2017 Audi S7, 2014 - 2017 Audi SQ5, 2003 - 2014 Audi TT, 2003 - 2014 Audi TT Quattro.

Compatible with Select Volkswagen Models - 2011 - 2017 Volkswagen Amarok, 1999 - 2017 Beetle, 2010 - 2011 Beetle Cabrio, 2014 - 2015 Beetle Cabrio, 2005 - 2011 Bora, 2011 - 2017 Caddy, 2009 - 2012 CC, 2016 Crafter, 2008 - 2016 Crafter Van, 2007 - 2016 Eos, 2009 - 2017 Gol, 2010- 2013 Gol Sedan, 2005 - 2007 Golf, 2010 - 2012 Golf, 2011 - 2013 Golf SportWagen, 2006 - 2012 GTI, 1999 - 2017 Jetta, 2006 - 2017 Passat, 2009 - 2012 Passat CC, 2008 R32, 2006 - 2009 Rabbit, 2011 - 2018 Touareg.

Direct Replacement - Perfect match, direct replacement. This coolant overflow tank cap is made from premium materials to ensure superior quality and long-lasting performance. This is not a genuine part, but an aftermarket replacement. We have strict quality control standards to ensure high performance. If you have any questions or concerns, please feel free to contact us.

We may earn commissions on qualifying purchases.

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