CSF Porsche 991.2 Carrera/GT3/RS/R 991 GT2/RS 718 Boxster/ Cayman/ GT4 Aluminum Side Radiator- Left

This CSF aluminum side radiator uses a unique B-tube design, which is a notable step up from standard oval radiator tubes. Instead of a simple oval, these tubes are shaped like a 'B' and brazed along the seam, making them stronger and allowing for thinner, lighter aluminum. This design also increases the heat transfer surface area by about 15%, giving you the cooling efficiency of two smaller tubes in the space of one large one, and enabling dual liquid laminar flow.

This radiator is built for serious cooling performance, whether you're pushing your Porsche on the track or dealing with high horsepower builds. It features a 2-row, 42mm core with multi-louvered fins that are precisely aligned to maximize airflow and heat rejection. The entire unit is constructed from aluminum with 100% TIG-welded end tanks, and CSF includes CNC-machined brackets and fittings that ensure a durable, precise fit. You can reuse your OEM hoses and even your original AC condenser and fan shroud, as the inlet and outlet connections are designed to match the factory specifications.

CSF has been making radiators for over 50 years, and this unit is designed as a true drop-in replacement for your 2017-2022 Porsche 718 Boxster, Cayman, Spyder, or 911 models. It's individually leak and pressure tested before it leaves the factory, so you can be confident in its reliability. This radiator is a solid option for anyone looking to maintain or improve their vehicle's cooling system, especially under demanding conditions.