This is a common part that fails causing coolant leaks on 1.8T engines. Replace the plastic part with this high quality Aluminum Cast part for years of trouble free use.
Mates to the factory hoses and a perfect OEM fitment. Includes new Thermostat O-Ring.
Replaces OEM part 06A121121C
- 2000-2005 Golf / Jetta 1.8T
- 1999-2005 Golf / Jetta 2.0L
- 2000-2006 Audi TT 1.8T