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Audi Radiator 8K0121251H – Behr

Audi Radiator 8K0121251H – Behr

MAHLE BEHR
Availability:
Out of stock
SKU 376745644
Sold out
$163.95 - $163.95
$163.95
$163.95 - $163.95
$163.95
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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This Audi radiator (OEM part 8K0121251H) by MAHLE Behr is a high-quality direct replacement for the engine cooling system. It efficiently transfers heat from coolant to air, keeping engine temperatures optimal. Designed to meet or exceed OE specifications, it provides reliable cooling for various Audi models including S5, A7, A6, A5, and A4.

Key Features & Benefits

  • OEM Quality: Manufactured by MAHLE Behr, a leading OE supplier, ensuring exact fit and performance.
  • Direct Replacement: Designed to bolt in with no modifications required.
  • Efficient Cooling: Multi-tube aluminum core with plastic tanks for maximum heat dissipation.
  • Durable Construction: Corrosion-resistant materials for long service life.
  • Rigorous Testing: Meets strict OEM standards for reliability.

Vehicle Fitment

Make Model Years Engine
Audi S5 2014–2016 3.0V6
Audi S5 2017 3.0V6
Audi A7 Quattro 2012–2014 3.0V6
Audi A7 Quattro 2015–2017 3.0V6
Audi A6 Quattro 2012–2014 3.0V6
Audi A6 Quattro 2015–2017 3.0V6
Audi A6 Quattro 2013–2014 2.0L4
Audi A5 2010–2013 2.0L4
Audi A4 Quattro 2009–2012 2.0L4
Audi A4 Quattro 2009 3.2V6
Audi A4 2009 2.0L4

Technical Specifications

Part Number 376745644
OEM Part Number 8K0121251H
Material Aluminum core with plastic tanks

Installation Notes

Direct fit replacement; professional installation recommended.

About MAHLE Behr

MAHLE Behr is a world-renowned OE supplier of thermal management systems, trusted by leading automotive manufacturers.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 12 applications
B8.5 S5
Make Model Engine Years
Audi S5 3.0V6 2014–2016
B9 S5
Make Model Engine Years
Audi S5 3.0V6 2017–2017
B8 A7
Make Model Engine Years
Audi A7 Quattro 3.0V6 2012–2014
B8.5 A7
Make Model Engine Years
Audi A7 Quattro 3.0V6 2015–2017
B8 A6
Make Model Engine Years
Audi A6 Quattro 3.0V6 2012–2014
Audi A6 Quattro 2.0L4 2013–2014
B8.5 A6
Make Model Engine Years
Audi A6 Quattro 3.0V6 2015–2017
Audi A6 Quattro 2.0L4 2015–2017
B8 A5
Make Model Engine Years
Audi A5 2.0L4 2010–2013
B8 A4
Make Model Engine Years
Audi A4 Quattro 2.0L4 2009–2012
Audi A4 Quattro 3.2V6 2009–2009
Audi A4 2.0L4 2009–2009
Fits 12 vehicle applications Check vehicle fitment before ordering View fitment

About this Radiator

The MAHLE BEHR 376745644 radiator releases engine heat to the air flowing through it, keeping the engine at its correct operating temperature. Many European radiators use plastic end tanks that can crack with age and heat cycles.

Frequently asked questions

What are the signs of a failing radiator?

Coolant leaks or white or green residue on the radiator, a cracked plastic tank, frequent low-coolant warnings, or the engine running hotter than normal, especially in traffic or when towing.

What should I replace along with the radiator?

Replace the O-rings, clamps and any brittle hoses or plastic fittings at the connections. If the car has high mileage, it is a good time to consider the thermostat and the expansion tank as well.

What coolant should I use?

Use the coolant your car's manufacturer specifies, mixed to the correct ratio, and flush the old coolant if it looks dirty or contaminated.

How do I refill the system after installation?

Fill with the correct coolant and bleed the air out following your car's procedure, which may include bleed screws or an electric water pump bleed routine. Trapped air can cause overheating even with a new radiator.

How do I make sure this radiator fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

Euromotiv is an independent retailer of OEM, Genuine, and aftermarket automotive parts. We are not affiliated with, endorsed by, or authorized by Audi AG, Volkswagen AG, BMW AG, Mercedes-Benz Group AG, Dr. Ing. h.c. F. Porsche AG, MINI, or any other vehicle manufacturer. All trademarks, logos, and brand names are the property of their respective owners and are used solely for identification and compatibility purposes.