A direct replacement for the standard part, Direnza radiators feature twin-core technology for optimised cooling capability. Constructed from aircraft grade aluminium (a material well-known for its excellent thermal conductivity), our radiators are the perfect addition to any car, including those driven hard on track.


Designed and developed in-house by Direnza engineers, our radiators provide as much as 40% additional cooling capacity compared with standard radiator systems, their robust yet intricate design, and exceptional cooling performance a testament to our R&D processes.


Direnza radiators are TIG-welded for additional strength and durability. TIG welding also provides a more precise finish than MIG welding, and reduces stress on the material at hand. Our radiators will enhance the appearance of any engine bay.

BMW 5 Series E39 M5 4.9 AC 98-03 Aluminium Performance Radiator

  • More Information
    Part Number DZRA051
    Product Category Intercooler / Radiator
    Manufacturer Direnza
    Intercooler / Radiator - Core Length (mm) 670mm
    Intercooler / Radiator - Core Width (mm) 42mm
    Intercooler / Radiator - Core Height (mm) 430mm
    Intercooler / Radiator - Overall Length (mm) 770mm
    Intercooler / Radiator - Overall Width (mm) 110
    Intercooler / Radiator - Overall Height (mm) 500
    Intercooler / Radiator - Inlet Size (mm) 38
    Intercooler / Radiator - Outlet Size (mm) 38
    Intercooler / Radiator - Other 1xDrain Plug / 1x10mm Overflow Pipe
    Fitment Position Front
    Material Alloy

0333 358 0383

31 Alston Drive, Bradwell Abbey, Milton Keynes, MK13 9HA

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