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Part # 7208

CSF Radiator, Audi Quattro, B2/B3/B4

CSF Radiator, Audi Quattro, B2/B3/B4



  • 2-Row, 42mm Ultra-High-Performance Dual Pass Core
  • Cooling Tubes with CSF’s Exclusive B-Tube Technology
  • 6.5mm Tall Ultra Efficient Fins with a Multi-Louvered Design for Maximum Surface Area Contact
  • CNC Machined Mounting Brackets and OEM Style Inlet/Outlet
  • 100% All Aluminum TIG-Welded Construction
  • Satin Black Finish for OEM+ Look
  • True Plug-and-Play “Drop-in Fit” Installation Requires Absolutely No Modifications
  • Individually Leak and Pressure Tested
  • Modular design for use with or without Auxiliary Radiator
  • Multiple Fan Shroud Mounting Points for use with all Fans (incl. High Performance RS2 Model)
  • Multiple overflow pipe locations on top end tank for different model variations
  • Sensor ports are M22x1.5 (if your OEM Sensor is an early model M20x1.5 please be aware you will need an adapter)
  • 2-Year Limited Warranty


  • Coupe
    • 82-87 Audi UR-Q – 10V (WR/WX/GV/MB)
    • 89-90 Audi UR-Q – 20V (RR/KW)
    • 86-88 Coupe GT (KX)
    • 01.91-12.92 Audi CQ (NM)
    • 01.91-12.92 Audi CQ (7A)
    • 01.91-12.92 Audi S2 (3B)
    • 01.93-07.95 Audi S2 (ABY)
  • Sedan
  • 01.80-07.83 Audi 4000S / 80 (JL/WE)
  • 08.83-07.87 Audi 4000S / 80 (WR)
  • 08.86-07.89 Audi 80/90 2.3 10V (NG)
  • 08.89-09.91 Audi 80/90 2.3 20V (7A)
  • 01.93-07.95 Audi S2 – 2.2T (ABY)
  • Wagon/Avant
    • 09.91-07.95 Audi 80 / Avant Quattro (NG)
    • 01.93-07.95 Audi S2 – 2.2T (ABY)
    • 04.94-07.95 Audi RS2 – 2.2T (ADU)
  • Cabriolet
    • 06.91-08.00 Audi Cabriolet (NG)


  • Audi: 893121251G (Quattro / B2 / B3 / B4)
  • Audi: 893121251S (B4 S2 / RS2)



The original OE radiator from Audi was a brazed copper and brass design. While generally accepted as good quality and durable, heat exchanger technology has progressed significantly over the decades since these cars were released. Obviously older turbocharged vehicles require the best possible cooling systems but NA engines also benefit from improved cooling efficiency. Anyone who has restored/updated a classic car knows the value of having updated parts that are as efficient as possible.

The CSF radiator features a 2-Row 42mm aluminum core that not only increases the fluid capacity of the radiator, but also improves the cores ability to dissipate heat. CSF’s Exclusive B-Tube Technology increases the heat transfer by approximately 15% over regular oval welded tubes. In addition, the super-efficient multi-louvered fins maximize airflow through the core for the best possible performance. CSF’s thin ultra efficient core allows the radiator to be mounted in the factory location with original ducting and requires no modifications or cutting. In contrast, other aftermarket aluminum radiators on the market use a massive 3-row core that requires modifications and cutting to install.The TIG-Welded 100% All Aluminum construction increases the overall strength of the radiator. This improves durability and longevity so you can be confident it will hold up to hard driving conditions. Additionally, the satin black finish gives the radiator a clean OEM look.




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