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CSF 3055 1999-2006 BMW 323i 99-05 BMW 325i 99-06 BMW 328i 99-05 BMW 330i 03-05 BMW Z4 CSF Radiator
CSF Radiator for BMW E46 323i 325i 328i 330i & Z4 (1999-2006) view 2CSF Radiator for BMW E46 323i 325i 328i 330i & Z4 (1999-2006) view 3CSF Radiator for BMW E46 323i 325i 328i 330i & Z4 (1999-2006) view 4CSF Radiator for BMW E46 323i 325i 328i 330i & Z4 (1999-2006) view 5

Spec sheet

BrandCSF
Order code3055
Typecooling
Fits chassisE46 E85 E86 FIT-E46 FIT-E85 FIT-E86
EngineAll
Fitment
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CSF · cooling

CSF Radiator

for BMW E46 323i 325i 328i 330i & Z4 (1999-2006)

Checking fitment…
$409
Returns: 30-day returns on unused, uninstalled parts in original packaging. Electrical and special-order parts are returnable only if defective. Refund policy
Want it installed? Book it at SPEEDhaus, Edmond OK Not sure it fits? Ask us

CSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your E46 3-Series/Z4 running at its best, a CSF High-Performance All-Aluminum Radiator is the obvious choice. Designed to perform on the street or at the track, a performance radiator is a must-have for both high horsepower builds as well as race vehicles which need added cooling performance in motorsports environments. This radiator features a 2-Row core with CSF's exclusive B-Tube Technology: Unlike a regular oval shape "O" type radiator tube, CSF uses a specially engineered tube in the shape of a "B". These "B-tubes" are carefully formed and then brazed over the seam to seal. CSF is able to use thinner and lighter aluminum material (with better cooling efficiency) because this design is actually stronger than normal "O" shape tubes that are welded. The design (inlet in the middle of the tube that is seam brazed) increases the heat transfer surface area of the tubes by approximately 15% over regular tubes - producing the efficiency of two smaller tubes vs. one large tube within the same space criteria. With "B-tubes" you are able to get "dual liquid laminar flow". CSF also uses ultra efficient multi louvered fins that are carefully and precisely aligned to maximize airflow through each radiator core. Fin specifications are carefully measured and calculated for each application, and tested for maximum heat rejection efficiency in our wind-tunnel lab.

  • "Drop-in Fit" Requiring No Modifications to Install - Accepts All Attaching OEM Components Including "Quick Connect" Hoses, AC Condenser, Mounting Brackets and Fan Shroud
  • Core Features an Ultra-Efficient Fin with 6.5mm Fin Height and Multi-Louvered Design for Maximum Surface Area Contact
  • 2-Row 42mm Core (Dual Core) Featuring CSF's Exclusive B-Tube Technology
  • CNC Machined Brackets and Fittings for Superb Fit and Durability
  • CNC Machined "Quick-Connect" Inlet/Outlet Connections
  • All-Aluminum Race Style Drain Plug
  • Smooth Satin Finish

Brand: CSF   Part #: 3055