CSF 7066 High Performance Radiator (Left) for PORSCHE 911 Carrera 4 / 4S / 4GTS / S (991) / Cayman GTS / GT4 / S (981)

With over fifty years of experience in radiator manufacturing, CSF is the obvious choice when it comes to ensuring your Porsche 911 Carrera's engine stays cool and performs at its peak. Designed for track-day use or racing applications, this high-performance all-aluminum radiator is a must-have for both high-horsepower street cars and dedicated race cars requiring enhanced cooling in motorsport environments. This radiator features a 2-row core with CSF's exclusive B-Tube Technology: Unlike conventional "O" style oval radiator tubes, CSF utilizes specially engineered "B" shaped tubes. These B-tubes are meticulously formed and then seam-soldered to seal them. CSF can use thinner, lighter aluminum material (with greater cooling efficiency) because this design is actually stronger than conventional "O" style welded tubes. The design (an inlet opening in the middle of the tube, seam-soldered shut) increases the surface area of the tubes' heat dissipation by approximately 15% compared to standard tubes – the efficiency of two smaller tubes compared to one larger tube within the same space criteria. With the B-tubes, a "dual-laminar flow" of coolant can be achieved. CSF also utilizes ultra-efficient fin stock that is carefully and precisely aligned to maximize airflow through the radiator core. The fin characteristics are carefully measured and calculated for each application and wind-tunnel tested for maximum heat dissipation efficiency.

The CSF radiator for the Porsche 911 Carrera is a true "drop-in fit" design, requiring no modifications for installation. OE-style mounting brackets are CNC-machined and welded for maximum strength. The inlet/outlet connections are designed to match original equipment specifications, allowing you to use OEM or aftermarket hoses. Trust the cooling experts at CSF for the most efficient, high-quality, and reliable radiators available.

OEM Part Numbers

• Porsche: 991 106 131 03
• Porsche: 991-106-131-03
• Porsche: 99110613103