CSF Racing 42mm All Aluminium Radiators

CSF continues to lead the industry in Porsche cooling solutions with the release of its all-new High-Performance Radiator Set for 992-generation 911 models (992.1 & 992.2). As more 992 owners push their cars on track and in performance builds, the limitations of the factory cooling system—especially on non-center-radiator models—have become apparent. CSF’s latest radiator range (Left, Right, and Center) is engineered to provide unmatched cooling performance and reliability.

Designed as a true “drop-in fit” upgrade, the CSF Radiators feature an all-aluminum construction with TIG-welded tanks, high-capacity 2-row 42mm cores, and CSF’s exclusive B-Tube Technology. This design increases heat transfer efficiency by 20–25% compared to OEM radiators, ensuring optimal engine temperatures even under demanding driving conditions.

Why Upgrade

CSF’s all-aluminum radiators significantly outperform factory plastic-tank radiators by maintaining consistent coolant temperatures and preventing heat soak under hard driving. Whether you’re chasing lap times or simply enhancing reliability, this upgrade extends engine life and ensures stable performance in every environment.

Engineering Partnerships

Developed in collaboration with world-class tuners and race teams, including M-Engineering, ES Motor, and Pacific German, the CSF 992 cooling package has been tested and proven in real-world track conditions to withstand extreme heat and boost pressure from high-powered Porsche engines.

CSF vs OEM

The original OE radiators from Porsche are plastic tanks with single row aluminum cores. While this is the most common OE radiator design and generally acceptable, there is always room for improvement. To compound the factory cooling system limitation, Porsche decided to forgo the center radiator on most models (see fitment notes) except the Turbo, Turbo S, GT3, and 992.2 GTS (Hybrid). This greatly limits the thermal capacity of the system and many owners report seeing high engine temperatures on track with some overheating after a few laps.

The CSF Advantage

The CSF radiators feature the latest 5mm multi-louvered fins. These fins significantly increase the heat exchange surface area improving overall cooling efficiency and recovery while still maintaining good airflow. The core is much larger than the factory featuring 2-Row 42mm aluminum core. This both increases the fluid capacity of the radiator, and improves the cores ability to dissipate heat. CSF’s Exclusive B-Tube Technology increases the heat transfer by approximately 15% over regular oval welded tubes. Combined with the new 5mm fins, heat transfer is increased by up to 25% overall. In addition, the super-efficient multi-louvered fins maximize airflow through the core for the best possible performance.

The TIG-Welded 100% All Aluminum construction increases the overall strength of the radiator. This improves durability and longevity so you can be confident it will hold up to hard driving conditions. The CSF radiator mounts in the factory location and requires no modifications or cutting.

CSF always seeks to offer the ultimate cooling solution. The latest 5mm fin technology was introduced at the end of 2023 offers even more heat transfer area and thermal efficiency than CSF’s tried and true 6.5mm fins. Porsche owners are known to push their cars hard and CSF is confident this radiator is ready to take on the most demanding conditions in the world.

Center Radiator Conversion/Addition

If your 992 911 did not come equipped with a center radiator, it is fairly simple and straight forward to add one on. This can be done using all OEM Porsche Parts to fit the CSF #7243 Center Radiator. Please see the installation instructions section below for details on how to add a center radiator to your 992.

Applications:

• 2019+ Porsche 992.1 & 992.2 Carrera (Base / T / S / 4 / 4S / GTS / 4 GTS incl. Hybrid models)
• 2020–2025 Porsche 992 Turbo / Turbo S
• 2022+ Porsche 992 GT3 / GT3 RS
• 2023–2024 Porsche 992 Sport Classic

CSF Part Numbers:

• Left Radiator – #7241 (Porsche 992.121.251)
  
• Right Radiator – #7242 (Porsche 992.121.252)
  
• Center Radiator – #7243 (Porsche 992.121.253 / 9GT.121.253)

• 2-Row 42mm Ultra-High-Performance Core – larger fluid capacity for superior heat dissipation
• 5mm Multi-Louvered Fin Technology – maximized surface area for faster cooling recovery
• CSF Exclusive B-Tube Technology – increases heat transfer up to 25% vs. standard tubes
• TIG-Welded 100% All-Aluminum Construction – improved durability and longevity
• OEM Fitment – mounts directly to factory ducting, AC condensers, and brackets
• Plug-and-Play Installation – no cutting, trimming, or modifications required
• Hand-Brushed Satin Finish – premium appearance to complement any build