Ensure a proper seal when installing your new thermostat
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Volkswagen Engine Coolant Flanges & Parts
Cure coolant loss, prevent catastrophic engine valley flooding, and resolve cooling system malfunctions on your 3.0L V6 TDI engine.
Plastic coolant flange to cure the infamous rear cylinder head coolant leak, resolve mysterious low-coolant warnings, and keep your VAG 2.0T running at the perfect temperature.
For vehicles with BPY engine code only
Replacement coolant flange to cure valley coolant leaks, resolve unexplained coolant loss, and prevent catastrophic overheating on your VAG 3.0L V6 engine.
For vehicles with CNRB engine code only (2013+)
Located on the front side of the cylinder head
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Includes sealing o-ring.
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AAZ engine code only.
For vehicles with ALH engine code only
Located on the left side of your vehicles cylinder head
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AAZ Engine code and automatic transmission only
Includes sealing o-ring.
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AAZ engine code only.
This also includes the thermostat housing
For vehicles with CBEA or CJAA engine code only
Holds the glow plugs for the cooling system
For vehicles with manual transmission only
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