CSF BMW E30 M3 High-Performance All-Aluminum Radiator

With over five decades of expertise in radiator manufacturing, CSF stands as a leader in delivering high-quality cooling solutions. The CSF BMW E30 M3 High-Performance All-Aluminum Radiator exemplifies this commitment, engineered to ensure optimal engine temperature management for your E30 M3. Whether for street driving or competitive track use, this radiator is an essential upgrade for vehicles demanding enhanced cooling capabilities, particularly those with high horsepower modifications or race applications.

This radiator is distinguished by its advanced 2-Row core design incorporating CSF’s proprietary B-Tube Technology. Unlike conventional oval-shaped "O" tubes, the B-Tube features a unique "B" shape, meticulously formed and seam-brazed to ensure superior strength and durability. This innovative design enables the use of thinner, lighter aluminum material while improving cooling efficiency beyond traditional welded tubes. The inlet positioned centrally within the brazed seam increases the heat transfer surface area by approximately 15%, effectively doubling the cooling capacity compared to a single large tube within the same spatial constraints. The B-Tube design also facilitates dual liquid laminar flow, enhancing the radiator’s overall thermal performance.

Complementing the B-Tube technology, CSF employs ultra-efficient multi-louvered fins that are precisely aligned to maximize airflow through the radiator core. Each fin’s specifications are carefully engineered and validated through rigorous wind tunnel testing to ensure optimal heat rejection and sustained cooling under demanding conditions.

The CSF E30 M3 radiator is designed as a true “Drop-in fit” replacement, requiring no modifications during installation. All brackets are CNC machined and welded to OEM standards, ensuring exceptional durability and precise fitment. The inlet and outlet connections are engineered to match original equipment specifications, allowing seamless integration with existing OEM hoses or aftermarket components. This attention to detail guarantees compatibility with all OEM attachments, including quick connect hoses, AC condensers, mounting brackets, and fan shrouds, facilitating a straightforward upgrade process.

Features

• CSF’s Exclusive B-Tube Technology for enhanced strength and cooling efficiency
• 1-1/4" Core equipped with an ultra-efficient, multi-louvered fin design to maximize surface area contact and airflow
• Slip-On 1-3/8" inlet and outlet connections compatible with OEM and aftermarket hoses
• CNC machined brackets and fittings for superior fitment and long-lasting durability
• All-aluminum race-style drain plug engineered for reliability and ease of maintenance
• 1-hour “Mirror Finish” hand polish ensuring a premium surface quality
• True “Drop-In Fit” installation requiring no modifications, compatible with all OEM components including quick connect hoses, AC condenser, mounting brackets, and fan shroud
• Direct replacement for OEM part number: 17111468084

Applications

OEM Part Numbers

• BMW: 17 11 1 468 084
• BMW: 17-11-1-468-084
• BMW: 17111468084

Warranty

Cooling Systems and Flexibles, Inc. (CSF) guarantees the performance and reliability of its High-Performance Cooling Systems under normal use and service conditions. This warranty is extended to the original purchaser of the vehicle in which the product was initially installed. For comprehensive warranty details, please refer to our Warranty Page.

SKU# 7063 Warranty Term: 2 years

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.

All in stock products ship the same day if ordered before 2pm GMT

For out of stock items we will contact you with an estimated wait time if not otherwise specified above.

We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy

All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.