SKU: 73169985246

CSF High Performance Aluminum Radiator - Audi / S4 / B5 / 2.7T

Sale price$291.25 Regular price$323.61
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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10

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Description

CSF High Performance Aluminum Radiator - Audi / S4 / B5 / 2.7TCSF 97 02 Audi S4 (B5) Radiator The new all aluminum high performance radiator from CSF is a 2 row 42mm core in a triple pass configuration. If youre looking to modify, upgrade, or simply keep up with the maintenance on an Audi B5 S4, upgrading the cooling system with new CSFs high performance all aluminum radiator is highly recommended CSF #7071. Its another crucial fix along with a laundry list of other items to replace and maintain on the iconic


CSF 97-02 Audi S4 (B5) Radiator

The new all-aluminum high performance radiator from CSF is a 2-row 42mm core in a triple-pass configuration.

If you’re looking to modify, upgrade, or simply keep up with the maintenance on an Audi B5 S4, upgrading the cooling system with new CSF’s high-performance all-aluminum radiator is highly recommended CSF #7071. It’s another crucial fix along with a laundry list of other items to replace and maintain on the iconic Audi B5 S4. Keep in mind that these cars are 15-20 years old, and if you haven’t already had to replace your original plastic tank radiator, the time is definitely coming soon!

CSF’s triple-pass technology allows the coolant to flow through the radiator core 3x rather than just flowing across the surface of the core once. This allows much colder ambient air to exchange heat with the coolant for a 3x longer period of time generating the lowest outlet temperature possible. Still with a drop-in fit!

OE replacement parts:

8D0-121-251-AP / 8D0 121 251 AP / 8D0121251AP 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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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]
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SKU: 73169985246

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4.2 ★★★★★
Based on 18 reviews
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Verified Purchase
Juli J. Denning
Charlottesville, US
★★★★★ 5
Soft, comfortable and really nice.
Size: Full
This product is of really nice material. It's soft and comfortable, deep pockets and fits my bed perfectly. It's a great product, however, if you're looking for something for back support, this isn't it. It isn't for me anyway - there's no firmness to this topper at all but it is very comfortable.
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Reviewed in the United States on April 5, 2026
M
Verified Purchase
Mrs. V
Charlottesville, US
★★★★★ 5
COMFORTABLE AND WORTH THE MONEY
Size: Queen
Excellent mattress topper. Its thick and paired with my matress provides a high end hotel feel. I have had it for a few months and it has not lost its shape and stays in place. Worth the money. You are definitely getting what you paid for.
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Reviewed in the United States on May 26, 2026
P
Verified Purchase
Pam
Boise, US
★★★★★ 5
Awesome!!
Size: King
This mattress topper is like sleeping on a cloud. It is so soft and comfortable to sleep on. It stays on the mattress very nice. Great price for a very nice topper. Highly recommend
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Reviewed in the United States on March 23, 2026
I
Verified Purchase
ilovepugs
Louisville, US
★★★★★ 5
Wow!!!
Size: King
I couldn’t be happier with this mattress cover—it completely transformed my sleep. I had one of the best nights of sleep I’ve had in a long time—no tossing and turning, just pure comfort. It stays in place nicely and feels high-quality and well-made. Fluffy without the bulk. If you’re looking to upgrade your sleep without buying a whole new mattress, this is absolutely worth it. Highly recommend!
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Reviewed in the United States on April 10, 2026
A
Verified Purchase
Ana M Vega
New York, US
★★★★★ 4
Best sleep matress topper
Size: Queen
Ordered after running out of options to get a good night's rest. Placed Q sized mattress topper on a tempur pedic matress and 1st night slept like a baby on a cloud. Ever since then I have knocked out after sleeping and moved less at night. Restful sleep has blessed out house again. It feels like a hotel comfy mattress. Totally recommend.
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Reviewed in the United States on April 8, 2026

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