This coolant overflow tank is compatible with Q7 models from 2003 to 2014 and corresponds to OEM part number 7L0121407E. Fits: - Q7 7LA, 7L6, 7L7 with 3.2L V6 engine (2003–2006) - Q7 7LA, 7L6, 7L7 with 4.2L V8 engine (2003–2006) - Q7 7LA, 7L6, 7L7 with 2.5L TDI engine (2003–2010) - Q7 7LA, 7L6, 7L7 with 3.0L TDI engine (2004–2010) - Q7 7LA, 7L6, 7L7 with 5.0L TDI engine (2003–2010) - Q7 7LA, 7L6, 7L7 with 6.0L W12 engine (2004–2010) - Q7 7LA, 7L6, 7L7 with 3.6L FSI engine (2005–2010) - Q7 7LA, 7L6, 7L7 with 4.2L FSI engine (2006–2010) - Q7 4LB with 3.0L engine (2006–2015) - Q7 4LB with 3.6L engine (2006–2010) - Q7 4LB with 4.2L engine (2006–2010) - Q7 4LB with 6.0L engine (2008–2014) Material: Heat-resistant plastic Includes cap Package includes: 1 coolant expansion tank