Who is this part for?
OEM code 1K0121407 is the original manufacturer code for Expansion Tank. This part is compatible with: VOLKSWAGEN Passat B6 (2005-2010), VOLKSWAGEN Tiguan 1 generation (2007-2017), VOLKSWAGEN Jetta 5 generation (2005-2011), VOLKSWAGEN Golf 5 generation (2003-2009), SEAT Leon 2 generation (2005-2012), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Touran 1 generation (2003-2015), AUDI A3 8P (2003-2013), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Jetta 5 generation (2005-2011), SKODA Yeti 1 generation (2009-2018), VOLKSWAGEN Golf 5 generation (2003-2009), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Golf 6 generation (2008-2015), VOLKSWAGEN Passat B6 (2005-2010), SEAT Leon 2 generation (2005-2012), VOLKSWAGEN Golf 5 generation (2003-2009), AUDI A3 8V (2012-2020), AUDI TT 8J (2006-2014), SKODA Superb 2 generation (2008-2015), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Passat B7 (2010-2015), VOLKSWAGEN Caddy 2 generation (1995-2004), VOLKSWAGEN Caddy 3 generation (2004-2015), VOLKSWAGEN Golf 6 generation (2008-2015), VOLKSWAGEN Golf 6 generation (2008-2015), VOLKSWAGEN Passat B6 (2005-2010), VOLKSWAGEN Passat B7 (2010-2015), SEAT Toledo 3 generation (2004-2010), VOLKSWAGEN Passat B7 (2010-2015), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Passat Variant 1 generation (2010-2024), VOLKSWAGEN Jetta 2 generation (1984-1992), VOLKSWAGEN Golf 6 generation (2008-2015), SKODA Octavia 2 generation (2004-2013), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Passat B7 (2010-2015), SEAT Toledo 3 generation (2004-2010), VOLKSWAGEN Golf Plus 1 generation (2004-2009), VOLKSWAGEN Golf Plus 1 generation (2004-2009), VOLKSWAGEN Golf 5 generation (2003-2009), VOLKSWAGEN Passat B6 (2005-2010), VOLKSWAGEN Passat B7 (2010-2015), VOLKSWAGEN Golf 5 generation (2003-2009), VOLKSWAGEN Passat B6 (2005-2010), VOLKSWAGEN Golf Plus 1 generation (2004-2009), VOLKSWAGEN Caddy 3 generation (2004-2015), VOLKSWAGEN Golf 5 generation (2003-2009), VOLKSWAGEN Caddy 3 generation (2004-2015), VOLKSWAGEN Caddy 3 generation (2004-2015), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Golf 5 generation (2003-2009), AUDI Q3 8U (2011-2020), SKODA Octavia 2 generation (2004-2013), SKODA Superb 2 generation (2008-2015), VOLKSWAGEN Passat B6 (2005-2010), VOLKSWAGEN Caddy 3 generation (2004-2015), SKODA Octavia 2 generation (2004-2013), VOLKSWAGEN Golf 6 generation (2008-2015), SKODA Octavia 2 generation (2004-2013), AUDI A3 8P (2003-2013), SKODA Octavia 2 generation (2004-2013), VOLKSWAGEN Golf 5 generation (2003-2009), AUDI A3 8P (2003-2013), VOLKSWAGEN Golf 5 generation (2003-2009), VOLKSWAGEN Passat B6 (2005-2010), VOLKSWAGEN Golf 6 generation (2008-2015), SKODA Octavia 2 generation (2004-2013), VOLKSWAGEN Golf 5 generation (2003-2009), VOLKSWAGEN Passat B6 (2005-2010), SKODA Octavia 2 generation (2004-2013), SKODA Octavia 2 generation (2004-2013), VOLKSWAGEN Golf Plus 1 generation (2004-2009), VOLKSWAGEN Caddy 3 generation (2004-2015), VOLKSWAGEN Golf Plus 1 generation (2004-2009), VOLKSWAGEN Tiguan 1 generation (2007-2017), VOLKSWAGEN Sharan 1 generation (1995-2010), SKODA Superb 2 generation (2008-2015), VOLKSWAGEN Passat B6 (2005-2010), VOLKSWAGEN Passat B6 (2005-2010), VOLKSWAGEN Passat B7 (2010-2015), VOLKSWAGEN Passat B5 (1996-2005), AUDI TT 8J (2006-2014), VOLKSWAGEN Scirocco 3 generation (2008-2020), VOLKSWAGEN Passat B8 (2014-2023), AUDI TT 8J (2006-2014), VOLKSWAGEN Golf 6 generation (2008-2015), AUDI TT 8J (2006-2014), VOLKSWAGEN Jetta 5 generation (2005-2011), VOLKSWAGEN Caddy 3 generation (2004-2015), VOLKSWAGEN Caddy 3 generation (2004-2015), VOLKSWAGEN Golf 8 generation (2019-2023), VOLKSWAGEN Passat B6 (2005-2010), SKODA Octavia 2 generation (2004-2013), SKODA Octavia 2 generation (2004-2013), VOLKSWAGEN Golf 8 generation (2019-2023), VOLKSWAGEN Passat B7 (2010-2015), SEAT Altea 1 generation (2004-2013), VOLKSWAGEN Tiguan 1 generation (2007-2017), SEAT Altea 1 generation (2004-2013), VOLKSWAGEN Jetta 3 generation (1992-1998), VOLKSWAGEN Tiguan 1 generation (2007-2017), AUDI TT 8J (2006-2014), AUDI A4 B7/8E (2004-2008), VOLKSWAGEN Golf 8 generation (2019-2023), VOLKSWAGEN Golf Plus 1 generation (2004-2009), SKODA Octavia 2 generation (2004-2013), VOLKSWAGEN Golf Plus 2 generation (2009-2014), VOLKSWAGEN Passat B6 (2005-2010), VOLKSWAGEN Passat B7 (2010-2015), SKODA Octavia 2 generation (2004-2013), SKODA Octavia 2 generation (2004-2013), VOLKSWAGEN Golf 5 generation (2003-2009), VOLKSWAGEN Golf 8 generation (2019-2023), VOLKSWAGEN Golf 8 generation (2019-2023), VOLKSWAGEN Passat B7 (2010-2015), VOLKSWAGEN Golf Plus 1 generation (2004-2009), VOLKSWAGEN Caddy 3 generation (2004-2015), VOLKSWAGEN Passat B6 (2005-2010), VOLKSWAGEN Caddy 3 generation (2004-2015), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Passat B7 (2010-2015), VOLKSWAGEN Passat B7 (2010-2015), VOLKSWAGEN Passat B7 (2010-2015), VOLKSWAGEN Golf 8 generation (2019-2023), VOLKSWAGEN Caddy 3 generation (2004-2015), VOLKSWAGEN Caddy 3 generation (2004-2015), SKODA Octavia 2 generation (2004-2013), VOLKSWAGEN Caddy 3 generation (2004-2015), VOLKSWAGEN Passat B8 (2014-2023), AUDI A3 8P (2003-2013), AUDI A3 8P (2003-2013), VOLKSWAGEN Golf 8 generation (2019-2023), VOLKSWAGEN Golf 8 generation (2019-2023), VOLKSWAGEN Golf 8 generation (2019-2023), SKODA Superb 2 generation (2008-2015), VOLKSWAGEN Passat B7 (2010-2015), AUDI Q3 F3 (2018-2024), VOLKSWAGEN Caddy 3 generation (2004-2015), SKODA Octavia 2 generation (2004-2013), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Caddy 3 generation (2004-2015), SKODA Octavia 2 generation (2004-2013), SKODA Octavia 2 generation (2004-2013), SKODA Superb 1 generation (2001-2008), VOLKSWAGEN Passat B7 (2010-2015), SKODA Superb 2 generation (2008-2015), SKODA Octavia 2 generation (2004-2013), VOLKSWAGEN Golf 8 generation (2019-2023), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Passat B7 (2010-2015), VOLKSWAGEN Caddy 3 generation (2004-2015), VOLKSWAGEN Golf 8 generation (2019-2023), SKODA Octavia 2 generation (2004-2013), AUDI A3 8P (2003-2013), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Caddy 3 generation (2004-2015), SEAT Toledo 3 generation (2004-2010), VOLKSWAGEN Passat B7 (2010-2015), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Passat B7 (2010-2015), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Golf 8 generation (2019-2023), SKODA Octavia 1 generation (1996-2010), VOLKSWAGEN Passat B8 (2014-2023), VOLKSWAGEN Passat B7 (2010-2015), SEAT Leon 2 generation (2005-2012), VOLKSWAGEN Golf 8 generation (2019-2023), AUDI Q3 F3 (2018-2024), VOLKSWAGEN Passat B7 (2010-2015), VOLKSWAGEN Passat B7 (2010-2015), VOLKSWAGEN Golf Plus 1 generation (2004-2009), SKODA Octavia 1 generation (1996-2010), AUDI A3 8L (1996-2003), VOLKSWAGEN Passat B6 (2005-2010), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Passat B6 (2005-2010), VOLKSWAGEN Passat B7 (2010-2015), SEAT Toledo 3 generation (2004-2010), VOLKSWAGEN Passat B7 (2010-2015), VOLKSWAGEN Golf 5 generation (2003-2009), VOLKSWAGEN Golf 5 generation (2003-2009), VOLKSWAGEN Passat B7 (2010-2015), SKODA Superb 1 generation (2001-2008), VOLKSWAGEN Passat B7 (2010-2015), VOLKSWAGEN Variant VII TDI (2014-2024), SKODA Superb 2 generation (2008-2015), VOLKSWAGEN Passat B6 (2005-2010), VOLKSWAGEN Passat B6 (2005-2010), VOLKSWAGEN Passat B6 (2005-2010), VOLKSWAGEN Passat B6 (2005-2010), VOLKSWAGEN Golf 8 generation (2019-2023), VOLKSWAGEN Touran 1 generation (2003-2015), VOLKSWAGEN Passat B5 (1996-2005), VOLKSWAGEN Golf 5 generation (2003-2009), VOLKSWAGEN Golf 4 generation (1997-2006), VOLKSWAGEN Golf Plus 1 generation (2004-2009), VOLKSWAGEN Golf Plus 1 generation (2004-2009), VOLKSWAGEN Passat B7 (2010-2015), VOLKSWAGEN Tiguan 1 generation (2007-2017), AUDI Q3 8U (2011-2020), VOLKSWAGEN Eos 1 generation (2006-2020), VOLKSWAGEN Golf 5 generation (2003-2009), VOLKSWAGEN Golf 8 generation (2019-2023), VOLKSWAGEN Golf Plus 1 generation (2004-2009)