CSF All Aluminum Radiator Acura RSX Base Type S DC5 Manual 2002-2006 K20A2 K20A3 K20Z1

CSF 7000
Regular Price $309.00 Special Price $278.10

Not in stock at our Sanford, FL location but electronically verified in stock at the Manufacturer/Distributor within the last 12 hours. (aka: not experiencing a supply delay)




CSF manufactures the most advanced and efficient radiator cores in the industry by using innovative tube and fin technologies with industry-leading testing methods to maximize airflow and heat dissipation. These techniques allow CSF to stay ahead of the pack when it comes to radiator technology.


Unlike a regular oval shape “O” type radiator tube, CSF uses a specially engineered tube in a 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 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.”

High Efficiency multi-louvered fins

CSF 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.


CSF aims to lead the cooling system industry by introducing new technologies and manufacturing processes that allows us to be on the cutting edge of heat transfer innovation.


  • CAD/CAM Designed Using State-of-the-Art Software, Including Solidworks, Fusion 360, and Unigraphics.
  • OE Radial, CNC Machined Billet, and Deep Drawn Aluminum Endtanks Available
  • “B-Tube” Technology – Stronger, Most Efficient Tube in the World
  • Wind Tunnel Tested for Optimal Radiator Core Cooling Efficiency
  • “Race Style” Aluminum Drain Plug


  • Brazed in CAB Furnace
  • ISO 9001/9002 Certification
  • Fully Manufactured and Assembled In-House, Including All Tubes and Fins
  • Military-Grade (Special Clad) Aluminum Used for Tubes, Fins, Header Plates, and Side Brackets (JIS 3003 Spec Minimum)
  • Privately Owned Factories With Full In-House Tool Rooms
  • CNC Machined Fittings
  • “Master Class” TIG Welding


CSF offers all-aluminum end-tank designs to match any style and performance need.


Each CSF high-quality radiator is completed with an industry-leading 1 hour, hand-polished “Show-Stopper™” Mirror Finish. Our hand polishing tools and techniques in our new polishing center located at the end of the production line ensure that every CSF cooling system looks just as good as it performs.


More Information
Availability New In Stock / Available
Barcode 710353070000
UPC Code 710353070000
Note Only for manual transmission
Shipping Weight (Dimensional) 28.100000
Clearance Sale Yes
On Sale On Sale
Availability Available
Part Type Radiators
Make Honda / Acura
Model RSX Base 02-06 DC5, RSX Type S 02-06 DC5
Engine K20A2, K20A3, K20Z1
Color Polished
Brand CSF
Carb Legal Unspecified
Shipping Label Free Shipping


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