Aluminum Coolant Flange Upgrade Kit with Cooling Hose Flange Coolant T-Fitting Thermostat Housing Cover Water Distribution Pipe Fits VW Golf Jetta Mk4 1.8T Audi TT Replace 06A121121C 06A121121F

Only thing I didnt like was the o-ring seal is a little bit bigger than the factory one. So plan on finding an o-ring that will work or buy a brand new temperature sensor that comes with an o-ring and metal clip. It will leak if you dont. Other than that it looks like they improved their castings and mot even have the oem part number casted into the housing.

I was a little wary of these because of the low price, but they seem to be decent and everything fit. Couple mold flashings I filed flat and no new O ring for the temperature sensor were the only minor gripes. Got everything buttoned back up the coolant is staying topped up, happy camper here.

Seem solid- super cheap… it does show in the casting… seemed to have some slight imperfections… maybe thin spots? I dont measure just seemed like i got whst i payed for. face it: you own a vw or audi and this is way better than the plastic rubbish they came with.

Casting flashing from mold process needs to be deburred smoothed out before installing hoses or it will leak. Otherwise a good replacement parts.

Part does not fit base where it connects to engine is way to big