Description
About This Part
Genuine OEM Audi/VW left (driver side) auxiliary radiator, also called the supercharger charge air cooler, part number 8K0-121-212-B (confirmed from the stamped label on the part). Brand new, never installed.
Fits
3.0L supercharged V6 (TFSI) equipped Audi models: 2010-2012 A4/S4, 2010-2011 A5/S5 Cabriolet, 2012-2018 A7/S7, 2013-2018 A8/A8L/S8, and Q5/SQ5. This is the left/driver-side unit — confirm your VIN before ordering since Audi used both a left and a right auxiliary radiator on these engines and they are not interchangeable.
Does Not Fit
Vehicles without the 3.0L supercharged V6 (2.0T four-cylinder and diesel/TDI models use a different cooling setup).
Check This Before You Order
Confirm your engine is the 3.0L supercharged V6 and that you need the left (driver) side unit, not the right side.
Condition
New. Never installed.
What Is Included
One (1) auxiliary radiator / charge air cooler, as pictured.
Why Genuine OEM
A genuine Audi radiator is built to the exact factory fit and cooling capacity, avoiding the fitment issues common with generic aftermarket coolers.
Shipping
Ships from Illinois. Free shipping is included in the listed price.







