CSF Porsche 964/993 OEM+ Performance Fender Oil Cooler

If you're working on a 1989-1998 Porsche 911 and need to replace the original fender oil cooler, CSF has an excellent OEM+ option that brings modern cooling technology to your air-cooled engine. The original cooler design, dating back to the 1980s, may be functional but doesn't offer the performance or reliability improvements that modern engineering can provide. This CSF cooler is designed to be a direct replacement, fitting seamlessly into the factory location without any modifications needed.

CSF partnered with SV Auto, experts in Porsche engine building and restoration, to develop this next-generation cooler. It features a 50mm high-performance tube and fin core that offers a 16% larger core volume and a 6% increase in heat dissipation compared to the original. The rolled fin design is stronger, more durable, and less prone to clogging, while wider air passages allow for a 10% increase in airflow. The fittings are a standout feature: CSF machined them in-house as threaded M30 "Widemouth" connections, which are designed to dramatically improve oil flow, offering up to 50% greater capacity than OEM connections. These stainless steel fittings are pre-installed with copper crush washers for a leak-free seal, and the entire unit is TIG-welded from 100% aluminum for increased strength and longevity.

This cooler is built to look right at home in a concours restoration while delivering enhanced performance. It works with the original fan and A/C condenser, and CSF even improved the fan shroud mounting locations for an easier installation. Whether you're restoring a classic 911, building a restomod, or preparing your car for track use, this CSF oil cooler is a solid choice for improved cooling and reliability.