
Specifications
- Brand
- CSF
- Part #
- 7000
- UPC
- 710353070000

CSF 02-06 Acura RSX Radiator
$365.00
Fits 2002-2006 Acura RSX. This all-aluminum radiator uses B-Tube technology for improved cooling efficiency.
Key Features
- Fits 2002-2006 Acura RSX.
- Features CSF's exclusive B-Tube technology for increased heat transfer surface area.
- 2-row, 42mm core design with multi-louvered fins maximizes airflow and heat dissipation.
- All-aluminum construction with a race-style drain plug.
- CNC machined brackets and fittings ensure a durable, precise fit.
- Designed as a direct, 'drop-in fit' requiring no modifications for installation.
- Acura RSX 2002-2006
Product Details
The B-Tube technology in this CSF radiator is a notable design choice. Unlike standard oval tubes, these specially formed tubes increase the heat transfer surface area by about 15% over regular tubes, essentially acting like two smaller tubes in the same space. This allows for a dual liquid laminar flow, which helps keep your 2002-2006 Acura RSX running cooler, whether you're on the street or the track.
Built with a 2-row, 42mm core, this all-aluminum radiator is designed for maximum heat rejection. CSF uses ultra-efficient, multi-louvered fins that are precisely aligned to optimize airflow. The brackets and fittings are CNC machined for a solid fit and durability, and the inlet and outlet connections are made to match the factory setup, so you can reuse your OEM hoses. It’s a true drop-in fit, meaning no modifications are needed for installation, and it accepts all your original components like the AC condenser and fan shroud.
This radiator is a well-built option for RSX owners looking for improved cooling performance. It’s a solid choice for both daily drivers and those with higher horsepower builds or track day cars that demand more from their cooling system.
Specifications
- Brand
- CSF
- Manufacturer Part #
- 7000
- UPC
- 710353070000
Frequently Asked Questions
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CSF 02-06 Acura RSX Radiator


