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Audi Radiator 8K0121251J – Behr 376754731
Audi Radiator 8K0121251J – Behr 376754731
Audi Radiator 8K0121251J – Behr 376754731
Audi Radiator 8K0121251J – Behr 376754731

Audi Radiator 8K0121251J – Behr 376754731

MAHLE BEHR
Disponibilidad:
Agotado
SKU 376754731
Agotado
$185.95 - $185.95
$185.95
$185.95 - $185.95
$185.95
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 Behr radiator (8K0121251J) is a direct replacement for the Audi S5 B8 with the 4.2L V8 engine from 2008-2012. It delivers OE-grade cooling performance to maintain optimal engine temperatures.

Key Features & Benefits

  • Direct Fitment: Designed for Audi S5 B8 (2008-2012) with 4.2L V8.
  • Aluminum Core: Provides efficient heat dissipation for spirited driving.
  • OE Specification: Manufactured to meet original equipment tolerances.
  • High-Durability Plastic Tanks: Resists cracking from thermal cycling.
  • Simple Swap: Bolts directly into factory mounts.

Vehicle Fitment

Make Model Years Engine
Audi S5 2008–2012 4.2V8

Technical Specifications

Part Number (OEM) 8K0121251J
Behr Reference 376754731
Core Material Aluminum
Tank Material Plastic
Engine Fitment 4.2L V8

Installation Notes

Direct bolt-in replacement; professional installation recommended.

About MAHLE BEHR

MAHLE BEHR is a leading OE supplier for European vehicles, known for high-quality cooling system components.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 1 application
B8
Make Model Engine Years
Audi S5 4.2V8 2008–2012
Fits 1 vehicle applications Check vehicle fitment before ordering View fitment

About this Radiator

The MAHLE BEHR 376754731 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.