Audi Secondary / Auxiliary Radiator Left 8K0121212B

OEM Part #: 8K0-121-212-B (8K0121212B)

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This authentic OEM auxiliary radiator (Part Number: 8K0121212B) is designed specifically for the left side of various Audi models, including the A7 Quattro, A8 Quattro, S4, S5, and SQ5, among others from 2010 to 2018. This essential component plays a critical role in regulating engine temperatures, particularly for supercharger cooling systems in vehicles powered by 3.0L V6 and 4.0L V8 engines. By replacing a worn or malfunctioning radiator, you can prevent overheating and ensure optimal performance. Also referred to as an intercooler, this factory-original part is sourced from salvage vehicles, guaranteeing its authenticity. Compatible replacement part numbers include 4H0260403L and 4H0317021R.

Specifications

Specifications for Secondary / Auxiliary Radiator 8K0121212B
Fits Vehicle ModelA7, A8, Q5, S4, S5, S7, S8, SQ5
Fits Vehicle MakeAudi
OEM Part No8K0-121-212-B (8K0121212B)
Compatible OEM Part No 8K0-121-212
SideLeft
CategoryRadiator / Coolant

Compatible Vehicles

Fits 53 vehicle configurations across 1 make, 2010-2018.

Check your specific vehicle before ordering. This list shows year, make, and model. Some years have multiple trims or engines that use different parts, and individual listings may have additional fitment notes (e.g. “with sunroof only”). Review the full variant list below, or message us with your VIN and we’ll confirm the match.

Audi

  • A7 2012-2014 · 4 variants
  • A8 2012-2018 · 23 variants 9 with notes
  • Q5 2013-2017 · 8 variants 8 with notes
  • S4 2010-2012 · 3 variants
  • S5 2010-2012 · 3 variants 3 with notes
  • S7 2013-2014 · 2 variants
  • S8 2013-2018 · 6 variants 6 with notes
  • SQ5 2014-2017 · 4 variants 4 with notes
View all 53 vehicle configurations — 30 with fitment notes
Full vehicle fitment list for Secondary / Auxiliary Radiator 8K0121212B
Year Make Model Trim Engine Note
2010 Audi S4 Sedan 3.0L V6 Supercharged
2010 Audi S5 Convertible 3.0L V6 Supercharged For Vehicles with Engine Code(s) CAKA, CCBA
2011 Audi S4 Sedan 3.0L V6 Supercharged
2011 Audi S5 Convertible 3.0L V6 Supercharged For Vehicles with Engine Code(s) CAKA, CCBA
2012 Audi A7 Quattro Hatchback 3.0L V6 Supercharged
2012 Audi A8 Quattro L Sedan 6.3L W12
2012 Audi S4 Sedan 3.0L V6 Supercharged
2012 Audi S5 Convertible 3.0L V6 Supercharged For Vehicles with Engine Code(s) CAKA, CCBA
2013 Audi A7 Quattro Hatchback 3.0L V6 Supercharged
2013 Audi A8 Quattro Sedan 3.0L V6 Supercharged
2013 Audi A8 Quattro Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA
2013 Audi A8 Quattro L Sedan 3.0L V6 Supercharged
2013 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA
2013 Audi A8 Quattro L Sedan 6.3L W12
2013 Audi Q5 SUV 3.0L V6 Supercharged For Vehicles with Engine Code(s) CTUD, CTXA
2013 Audi S7 Hatchback 4.0L V8 Turbo
2013 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA
2014 Audi A7 Quattro Hatchback 3.0L V6 Supercharged
2014 Audi A7 Quattro Hatchback 3.0L V6 Diesel Turbo
2014 Audi A8 Quattro Sedan 3.0L V6 Supercharged
2014 Audi A8 Quattro Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA
2014 Audi A8 Quattro L Sedan 3.0L V6 Supercharged
2014 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA
2014 Audi A8 Quattro L Sedan 6.3L W12
2014 Audi Q5 SUV 3.0L V6 Supercharged For Vehicles with Engine Code(s) CTUD, CTXA
2014 Audi Q5 SUV 3.0L V6 Diesel Turbo For Vehicles with Engine Code(s) CGQB, CVUB, CVUC
2014 Audi S7 Hatchback 4.0L V8 Turbo
2014 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA
2014 Audi SQ5 SUV 3.0L V6 Supercharged For Vehicles with Engine Code(s) CTUD, CTXA
2015 Audi A8 Quattro Sedan 3.0L V6 Supercharged
2015 Audi A8 Quattro Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF
2015 Audi A8 Quattro L Sedan 3.0L V6 Supercharged
2015 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF
2015 Audi A8 Quattro L Sedan 6.3L W12
2015 Audi Q5 SUV 3.0L V6 Supercharged For Vehicles with Engine Code(s) CTUD, CTXA
2015 Audi Q5 SUV 3.0L V6 Diesel Turbo For Vehicles with Engine Code(s) CGQB, CVUB, CVUC
2015 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF
2015 Audi SQ5 SUV 3.0L V6 Supercharged For Vehicles with Engine Code(s) CTUD, CTXA
2016 Audi A8 Quattro L Sedan 3.0L V6 Supercharged
2016 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF
2016 Audi A8 Quattro L Sedan 6.3L W12
2016 Audi Q5 SUV 3.0L V6 Supercharged For Vehicles with Engine Code(s) CTUD, CTXA
2016 Audi Q5 SUV 3.0L V6 Diesel Turbo For Vehicles with Engine Code(s) CGQB, CVUB, CVUC
2016 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF
2016 Audi SQ5 SUV 3.0L V6 Supercharged For Vehicles with Engine Code(s) CTUD, CTXA
2017 Audi A8 Quattro L Sedan 3.0L V6 Supercharged
2017 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF
2017 Audi Q5 SUV 3.0L V6 Supercharged For Vehicles with Engine Code(s) CTUD, CTXA
2017 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF
2017 Audi SQ5 SUV 3.0L V6 Supercharged For Vehicles with Engine Code(s) CTUD, CTXA
2018 Audi A8 Quattro L Sedan 3.0L V6 Supercharged
2018 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF
2018 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF

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