CSF Porsche 955/957 Cayenne High-Performance All-Aluminum Radiator

CSF has established a distinguished reputation in the automotive industry, particularly in the development and manufacturing of advanced cooling systems for Porsche vehicles. With extensive expertise spanning intercoolers and radiators tailored for modern water-cooled Porsche models, as well as oil coolers designed for the classic air-cooled variants, CSF consistently delivers products that meet rigorous performance and reliability standards. Complementing this, CSF is recognized for producing some of the most sought-after performance radiators utilized in demanding off-road environments, underscoring the brand’s commitment to durability and efficiency under challenging conditions.

The CSF Porsche 955/957 Cayenne High-Performance All-Aluminum Radiator represents a culmination of this expertise, integrating cutting-edge cooling technology to address the specific thermal management challenges faced by these SUVs. Incorporating CSF’s latest Ultra-Efficient 5mm fin technology, this radiator significantly enhances heat transfer capabilities by increasing the cooling surface area by 20-25% compared to conventional radiator designs. This advancement directly translates into improved engine temperature regulation, especially under strenuous operating conditions such as towing, off-roading, or driving in elevated ambient temperatures.

It is well documented that the original equipment (OE) radiator supplied by Porsche for the 955/957 Cayenne models features a plastic tank construction paired with a single-row aluminum core. While this design has been generally regarded as reliable, it falls short in meeting the rigorous cooling demands of the Cayenne platform. These vehicles are prone to overheating, particularly when subjected to heavy loads or extended operation in hot climates. Additionally, many of these SUVs are now between 15 and 20 years old, and the original radiators often suffer from diminished efficiency due to fin damage, clogging, and general wear. CSF’s design team meticulously addressed these issues to deliver a radiator that not only meets but exceeds the performance of the original unit.

The CSF radiator features a robust 2-row, 42mm thick aluminum core that substantially increases coolant volume and enhances heat dissipation capacity. The adoption of CSF’s proprietary B-Tube Technology, which improves heat transfer efficiency by approximately 15% over standard oval welded tubes, further elevates the radiator’s performance. Complementing this, the multi-louvered fin design maximizes airflow through the core, ensuring optimal heat exchange and rapid temperature recovery during demanding driving scenarios.

Constructed entirely from TIG-welded aluminum, the radiator boasts superior structural integrity and longevity. This all-aluminum construction not only reduces weight but also provides enhanced resistance to corrosion and mechanical stress, ensuring dependable operation over the vehicle’s lifespan. The radiator is engineered for a direct, bolt-in replacement, fitting precisely into the factory mounting points without necessitating any modifications or cutting, thereby simplifying installation and preserving the vehicle’s original configuration.

Extensive real-world testing was conducted at Loveland Pass, near Denver, involving two identically equipped 955 Cayenne vehicles. Both vehicles featured comparable mileage, tire size, and additional accessories such as winches and auxiliary lighting. One vehicle was fitted with the CSF radiator, while the other retained the OE radiator. The results demonstrated a consistent temperature differential of 18-20°F in favor of the CSF-equipped vehicle. Both vehicles commenced testing at 186.8°F (86°C), with the OE radiator vehicle reaching a peak temperature of 212°F (100°C), whereas the CSF radiator vehicle stabilized at 194°F (90°C). These findings underscore the tangible benefits of the CSF radiator in enhancing thermal management and protecting engine components under strenuous conditions.

Features

• 2-Row, 42mm Ultra-High-Performance Core designed for increased coolant capacity and heat dissipation
• Cooling Tubes incorporating CSF's Exclusive B-Tube Technology for approximately 15% improved heat transfer
• New 5mm Tall Ultra Efficient Fins with a Multi-Louvered Design to maximize surface area contact and airflow
• CNC Machined Mounting Brackets and OEM Style Inlet/Outlet ensuring precise fitment and compatibility
• 100% All Aluminum TIG-Welded Construction providing enhanced strength, durability, and corrosion resistance
• Hand Brushed Satin Finish offering a refined aesthetic and additional surface protection
• True Plug-and-Play "Drop-in Fit" Installation requiring no modifications, preserving factory integrity
• Individually Leak and Pressure Tested to guarantee quality and reliability
• 2-Year Limited Warranty providing assurance of product longevity and manufacturer support

Applications

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

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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.