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CSF 97-02 Audi S4 (B5) Aluminum Radiator

- 6%

CSF 97-02 Audi S4 (B5) Aluminum Radiator

$ 599.00 $ 559.00

Brand:

CSF

Ships from the manufacturer

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Shipped directly from the manufacturer to your address. Most orders ship the next business day, subject to manufacturer availability.

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CSF 97-02 Audi S4 (B5) Aluminum Radiator

$ 599.00 $ 559.00

CSF 97-02 Audi S4 (B5) Aluminum Radiator

CSF Radiator upgrade. Clear fitment guidance, benefits, and fast availability verification through EZT.

Overview

What it is: A CSF Radiator upgrade designed to improve thermal management compared to the factory setup.

Why it matters: Improves coolant temperature stability and reduces heat soak during hard driving, hot weather, or tuned use.

Fitment at a glance

Leak Tested: Each unit is individually tested to guarantee reliability under high-pressure conditions.
Year: 1997-2002
Make: Audi
Model: S4
Chassis: B5
Engine: 2.7T

Stock check by chat Category: Radiator Ships: Fast supplier fulfillment

Who should buy this

Tuned vehicles, aggressive driving, track days, towing, or hot-climate owners who want more consistent temps and reliability.

How to get it quickly

Use live chat with your VIN or exact trim info. We will confirm the correct CSF part and verify availability before it ships.

What This Upgrade Does

Helps reduce heat soak during repeated pulls, long drives, or track sessions
Improves temperature stability compared to aging factory components
Supports reliability for tuned setups and hard use
Provides peace of mind in hot weather and stop-and-go traffic

Key Features

CSF engineered core design for improved heat rejection
Direct-fit form factor for OEM-style mounting in most applications
High-quality construction intended for performance use
Designed to integrate with your factory cooling system layout

Fitment Details

Fitment can vary by engine, trim, and factory cooling package. We recommend confirming with VIN before ordering.

Leak Tested: Each unit is individually tested to guarantee reliability under high-pressure conditions.
Year: 1997-2002
Make: Audi
Model: S4
Chassis: B5
Engine: 2.7T

Installation Notes

This is a direct-fit replacement for the factory component in most applications. No tuning is required for installation. Professional installation is recommended if you are not familiar with cooling system service.

Plan for coolant and or fluid service during installation
Bleed the cooling system properly after install as required by your platform
If your car has additional sensors or cooling packages, confirm compatibility first

Shipping and Availability

Most CSF items ship quickly. If it is in stock at our supplier network, it typically leaves within 1 to 2 business days. If it is backordered, we will contact you with the best ETA before it ships. Need it fast? Message us on live chat and we will verify stock for your exact CSF part number.

Fastest way to order correctly

Live chat us your VIN and your goals (daily, tuned, track, towing). We will confirm the right CSF part and get it moving.

Original Product Notes

We kept your original imported notes here for reference.

CSF 97-02 Audi S4 (B5) Aluminum Radiator
At Eurozone Tuning, we take pride in hand-selecting only the best products for our customers—products we trust to enhance performance, reliability, and value. The CSF High-Performance Aluminum Radiator for the Audi B5 S4 is a must-have upgrade for enthusiasts looking to improve their vehicle's cooling system. Built with cutting-edge technology and designed for a perfect OE-style fit, this radiator ensures your iconic B5 S4 stays cool, even during spirited driving or track sessions.
Why Upgrade?
The factory radiator on the Audi B5 S4 is prone to wear and inefficiency after years of use. With many of these vehicles now over 20 years old, replacing the original plastic tank radiator is inevitable. The CSF Aluminum Radiator offers a robust, all-aluminum construction with advanced cooling features that outperform the stock unit. Whether you're maintaining a daily driver or preparing for high-performance use, this radiator is an essential upgrade to prevent overheating and ensure consistent performance.
Key Features:
B-Tube Technology: Increases heat transfer by approximately 15% compared to standard oval welded tubes.
Triple-Pass Design: Maximizes coolant flow through the core for improved cooling efficiency.
42mm Core: Features a high-efficiency 2-row core with multi-louvered fins for optimal airflow and heat dissipation.
TIG Welded Military-Grade Aluminum: Provides unmatched durability and resistance to wear and corrosion.
OE-Style Fitment: Includes machined quick-connect fittings and mounting points for a drop-in installation with no modifications required.
Vibration-Free Design: Machined seating areas for rubber bushing pads ensure secure fitment and eliminate vibrations.
Leak Tested: Each unit is individually tested to guarantee reliability under high-pressure conditions.
Vehicle Fitment:
Year: 1997-2002
Make: Audi
Model: S4
Chassis: B5
Engine: 2.7T
The Eurozone Tuning Advantage
At Eurozone Tuning, we don’t just sell parts—we curate solutions that meet our rigorous standards for quality, performance, and reliability. The CSF Aluminum Radiator is trusted by enthusiasts worldwide for its ability to handle increased horsepower demands while maintaining optimal cooling efficiency. Whether you’re restoring your B5 S4 or upgrading it for spirited driving, this radiator is designed to deliver exceptional results.
If you’re ready to upgrade your Audi’s cooling system with a product you can trust, order the CSF High-Performa

CSF radiators and intercoolers really impress me. They do an amazing job of keeping everything cool, even when you're pushing the limits on the track or during some spirited driving. I trust their products completely—they’ve always performed like a champ for me. Plus, the quality and fitment are top-notch, making them an easy go-to for any build. You really can’t go wrong with CSF!

Warranty & Product Support Coverage for manufacturing defects, with help from EZT when you need it.

Eurozone Tuning

EZT-Branded Kits: 6 months for repair or replacement due to manufacturing defects. Improper installation, accidents and misuse are excluded.
EZT Carbon Edition Steering Wheels: 1 year for workmanship. Physical misuse, harsh-environment damage and improper installation are excluded.

Brakes

Brembo: 24-month limited warranty on eligible U.S. purchases from authorized sellers.
DFC: 12 months / 12,000 miles, whichever comes first. Licensed professional installation and normal street use are required.
PowerStop: Standalone calipers: 90 days / 3,000 miles, whichever comes first. Complete brake-kit coverage varies by product line.
SHW Performance: Contact us for the warranty terms applicable to your specific part.
Porterfield: Racing and competition parts carry no manufacturer warranty. Contact us about street-pad defect concerns.

Exhaust, Cooling & Fluids

AWE: Limited lifetime coverage on exhaust tubing, welds and flex sections. Mechanical valves: 3 years. Valve motors, electronics, catalysts, intakes and intercoolers: 1 year. Tip coverage varies by finish.
Milltek: Limited lifetime coverage on eligible exhaust components. Catalysts and downpipes: 2 years / 80,000 km. Electronics: 2 years. Valve-equipped components and other exceptions follow the applicable product and regional terms.
ZAC Motorsport: 2 years on standard products. Custom/made-to-order items, wheels and brake components are excluded. Tuning and built drivetrain products have separate terms.
CSF: 2-year limited warranty on eligible high-performance cooling products under normal use.
Motul: Contact us promptly about leaking, damaged or suspected defective products. Keep the packaging and batch information for review.

Suspension

KW: Limited lifetime coverage on eligible street suspension systems. Accessories and other product lines have separate terms.
ST: Coilovers: 5 years. Other components have different coverage periods.
Eibach: Eligible springs and sway bars: 5 years. Listed shocks, dampers and truck coilovers: 2 years. Listed accessories and wear parts: 1 year. Coverage depends on the product line.
Öhlins: Automotive Road & Track: 2 years, excluding finish. Racing applications are excluded.
Bilstein: Limited lifetime coverage on many eligible North American products. Certain product lines have shorter terms.

Need to start a claim?

Email support@eurozonetuning.com with your order number, photos or video, mileage since installation and a description of the issue. Keep the product and proof of purchase. Contact us before returning parts.

Coverage is generally for the original purchaser and is subject to inspection and the applicable warranty terms. Normal wear, improper installation, misuse, modifications and racing are commonly excluded. Labor, installation, shipping and related expenses are not covered unless expressly included in the applicable policy.

Mixed-brand kits follow each component manufacturer’s warranty; they do not automatically receive the EZT-branded kit warranty. Product-specific terms, purchase date and region control. This summary does not limit rights provided by applicable law. For brands not listed, contact us for the relevant terms.

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CSF 97-02 Audi S4 (B5) Aluminum Radiator

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CSF 97-02 Audi S4 (B5) Aluminum Radiator

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