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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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CSF
CSF 7071 High-Performance All-Aluminum Radiator for 2000-2002 Audi S4 (B5)
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits 2000-2002 Audi S4 Base and Avant (B5).
Maintain optimal engine temperatures on the street or track with the CSF High-Performance All-Aluminum Radiator. This drop-in replacement is engineered to handle the increased cooling demands of high-horsepower builds and motorsport environments where factory radiators often fail. Built from lightweight, high-strength aluminum, this radiator replaces the plastic-tank OE unit with a durable, satin-finished race-style core.
The heart of this radiator is CSF’s exclusive B-Tube technology. Unlike standard "O" shaped tubes, the B-tube design uses a seam-brazed internal structure that increases the heat transfer surface area by approximately 15%. This creates the efficiency of two smaller tubes within a single 42mm 2-row core, promoting dual liquid laminar flow. To further enhance heat rejection, CSF utilizes 6.5mm multi-louvered fins that are precision-calculated for maximum airflow. Every unit features CNC-machined brackets and quick-connect inlet/outlet fittings to ensure a perfect factory-style fit with OEM hoses, fans, and mounting points.
- Manufacturer Part Number: 7071
- High-efficiency 2-row 42mm core with B-Tube technology
- 6.5mm multi-louvered fins for maximum surface area contact
- CNC-machined quick-connect inlet/outlet connections
- CNC-machined mounting brackets and fittings for a drop-in fit
- All-aluminum race-style drain plug
- Compatible with OEM quick-connect hoses, AC condenser, and fan shroud
- Smooth satin finish
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2002 | Audi | S4 | Avant |
| 2000-2002 | Audi | S4 | Base |
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Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
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The Atlus Price Guarantee
If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom right of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
CSF 7071 High-Performance All-Aluminum Radiator for 2000-2002 Audi S4 (B5)
Note: Images are for illustrative purposes only. The actual product may vary in appearance or contents. Please read the full description and verify the item you're receiving.
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
Price Match
If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
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Fits 2000-2002 Audi S4 Base and Avant (B5).
Maintain optimal engine temperatures on the street or track with the CSF High-Performance All-Aluminum Radiator. This drop-in replacement is engineered to handle the increased cooling demands of high-horsepower builds and motorsport environments where factory radiators often fail. Built from lightweight, high-strength aluminum, this radiator replaces the plastic-tank OE unit with a durable, satin-finished race-style core.
The heart of this radiator is CSF’s exclusive B-Tube technology. Unlike standard "O" shaped tubes, the B-tube design uses a seam-brazed internal structure that increases the heat transfer surface area by approximately 15%. This creates the efficiency of two smaller tubes within a single 42mm 2-row core, promoting dual liquid laminar flow. To further enhance heat rejection, CSF utilizes 6.5mm multi-louvered fins that are precision-calculated for maximum airflow. Every unit features CNC-machined brackets and quick-connect inlet/outlet fittings to ensure a perfect factory-style fit with OEM hoses, fans, and mounting points.
- Manufacturer Part Number: 7071
- High-efficiency 2-row 42mm core with B-Tube technology
- 6.5mm multi-louvered fins for maximum surface area contact
- CNC-machined quick-connect inlet/outlet connections
- CNC-machined mounting brackets and fittings for a drop-in fit
- All-aluminum race-style drain plug
- Compatible with OEM quick-connect hoses, AC condenser, and fan shroud
- Smooth satin finish
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2002 | Audi | S4 | Avant |
| 2000-2002 | Audi | S4 | Base |
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