Audi A-4 2.0L (05-08) Thermostat + Housing + Seal ring Thermostat Includes Housing and Seal Ring Brand NEW part with full 1 year warranty. Audi part# 06D 121 111 G, for 2.0L engine only: : (2005-2008): A4 2.0 : (2005-2008): A4 Quattro 2.0