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BMW E46 Radiator 99-06 320/323/325/328/330 + Z4 03-05

BMW E46 Radiator 99-06 320/323/325/328/330 + Z4 03-05

SKU: SKU: #CSF-RAD-25275217-V1

€645,00 MSRP
Ex VAT

Exclusive B-Tube Technology increases heat transfer surface area by approximately 15%

True drop-in fit design requires no modifications and accepts all OEM components

All-aluminum construction with CNC machined brackets and fittings for superior durability

Multi-louvered fins precisely engineered and wind-tunnel tested for maximum heat rejection

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Further Information

CSF brings over 5 decades of radiator manufacturing expertise to the E46 3-Series and Z4, delivering a high-performance all-aluminum radiator engineered for both street and track use. This radiator is essential for high-horsepower builds and motorsports applications requiring superior cooling performance.

Featuring a 2-Row 42mm core with CSF's exclusive B-Tube Technology, this radiator achieves approximately 15% greater heat transfer surface area compared to conventional oval-tube designs. The innovative B-shaped tubes are seam-brazed for strength while using thinner, lighter aluminum material, creating dual liquid laminar flow within the same space envelope. Ultra-efficient multi-louvered fins with 6.5mm fin height are meticulously aligned and wind-tunnel validated for maximum airflow and heat rejection.


Key Features:
  • Exclusive B-Tube Technology with seam-brazed construction
  • 2-Row 42mm dual core with 15% greater surface area efficiency
  • Ultra-efficient multi-louvered fins precisely engineered for maximum airflow
  • CNC machined quick-connect inlet/outlet connections
  • CNC machined brackets and fittings for exceptional durability
  • All-aluminum race-style drain plug with satin finish
  • True drop-in fit requiring zero modifications
  • Compatible with OEM hoses, AC condenser, brackets and fan shroud

Includes:
  • High-performance all-aluminum radiator assembly
  • CNC machined mounting brackets
  • Quick-connect inlet/outlet connections
  • Race-style aluminum drain plug

Maximum cooling performance. Drop-in compatibility. Built for the E46 and Z4.
Manufacturer SKU 3055