CSF BMW S54 Swap Into E36 / E46 Chassis High Performance Radiator

CSF is well-known for making some of the best cooling systems for high-performance BMWs, and they've put that experience to work with this radiator designed specifically for S54 engine swaps into E36 and E46 chassis. If you're putting that powerful S54 engine into an E36 or E46, you know the stock cooling system just won't cut it, and CSF has developed a solution that addresses the unique needs of this swap.

This radiator features a slightly reduced height to accommodate two race-spec oil coolers (CSF #8032 & #8240) that mount neatly underneath, using the included adjustable brackets. It also comes with brackets for an electric fan conversion, designed to fit a single 16-inch SPAL fan, which is a popular upgrade for improved cooling and efficiency over a clutch fan. The construction is all-aluminum with TIG-welded seams for durability and heat dissipation, featuring a 2-row, 42mm core with 6.5mm tall, multi-louvered fins to maximize surface area and airflow. CSF's exclusive B-tube technology is also incorporated to further enhance heat transfer. Everything is designed for a true plug-and-play installation, meaning no modifications are needed to fit it into your E36 or E46 chassis.

This radiator is a direct fit for a range of BMW models, including the 1992-1998 318i, 1995-1999 M3, and 2001-2006 330Ci. It includes CNC machined mounting brackets and OEM-style inlet/outlet fittings for a clean setup. You'll also get two top covers, one black and one satin, to give it a clean, OEM+ look once installed. It’s individually leak and pressure tested to ensure it’s ready to perform right out of the box.