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- USA
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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
For Your Every Summer RSVP, with Code: SUMMER15
Description
CSF Audi B5 A4 1.8T High Performance All Aluminum RadiatorCSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your B5 A4 1. 8T 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
CSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your B5 A4 1.8T 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.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1997-2001 | Audi | A4 | Base |
| 1999-2001 | Audi | A4 Quattro | Avant |
| 1997-2001 | Audi | A4 Quattro | Base |
| 1998-2001 | Volkswagen | Passat | GLS |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 4
Nice touch
Allows for some organization, and looks nice. Pretty sturdy, and I have not had any issues with it, I was a little smaller than I hoped.
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Reviewed in the United States on June 28, 2020
★★★★★ 5
Nice quality
Seems very good quality. Will purchase again.
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Reviewed in the United States on October 18, 2025
★★★★★ 5
Roomy
Looks even better in person. More room then I expected
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Reviewed in the United States on October 31, 2025
★★★★★ 5
Nice
Great
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Tray
This is the perfect size! I received my order sooner than expected when the first one wasn't delivered.
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Reviewed in the United States on December 17, 2025
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