The 8K0 121 403 Q coolant expansion tank / radiator overflow bottle is a replacement component for selected Audi Q5 8R 2008-2017 EA888 Gen2 applications. It belongs to the Cooling System category.

OE Reference and Vehicle Compatibility

Main OE reference: 8K0 121 403 Q. Listed fitment: Audi Q5 8R 2008-2017 EA888 Gen2, model years 2008-2017, engine EA888 Gen2. Fitment can vary by production date, engine and equipment configuration, so compare the original part number or confirm the VIN before replacement.

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