CSF 7239 Aluminum Radiator – Fits 2016-2018 Ford Focus RS

The CSF 7239 aluminum radiator is designed to fit 2016-2018 Ford Focus RS models and provides a substantial cooling upgrade for street, performance, and track applications. Its high-capacity aluminum core increases coolant volume and heat dissipation compared with the original radiator design, helping manage elevated temperatures caused by performance modifications, demanding driving, or hot climates. This radiator installs in the factory location without modifications for a true drop-in fit, subject to the included instructions and vehicle condition.
The triple-pass flow configuration routes coolant across the core three times before it exits, helping achieve lower outlet temperatures and improved thermal control. CSF\'s exclusive B-Tube technology enhances heat transfer compared with conventional oval welded tubes, while the ultra-efficient multi-louvered fin design maximizes surface contact and airflow through the core. The combination of efficient airflow and increased cooling capacity supports consistent engine temperature control during demanding use.

• Triple-pass flow configuration routes coolant across the core three times for improved heat dissipation


• Multi-louvered high-efficiency fins maximize airflow and surface area contact


• True plug-and-play drop-in fit installs in the original radiator location without modifications


• Cooling tubes feature CSF\'s exclusive B-Tube technology for enhanced heat transfer


• All-aluminum TIG-welded construction provides strength and durability


• CNC-machined mounting pins and brackets support precise installation


• OEM-style inlet and outlet connections simplify hose compatibility


• Individually leak and pressure tested before shipment


• Backed by a 2-year limited warranty

For proper installation, follow the included instructions and consult the vehicle manufacturer\'s repair manual for standard cooling-system service procedures. If you are not comfortable performing the installation, have the radiator installed by a qualified professional. This CSF radiator is intended for compatible 2016-2018 Ford Focus RS applications and is not presented as an OEM product or as affiliated with Capacity: High-capacity aluminum core improves heat absorption and dissipation for demanding driving conditions

Triple-Pass Flow: Routes coolant across the core three times to help reduce outlet temperatures

B-Tube Technology: CSF cooling tubes improve heat transfer compared with conventional oval welded tubes

High-Efficiency Fins: Multi-louvered fin design maximizes airflow and surface contact

Construction: TIG-welded aluminum design provides durable performance

Installation: True drop-in fit installs in the original radiator location without modifications

Fitment: Fits 2016-2018 Ford Focus RS models

Quality Testing: Individually leak and pressure tested

Warranty: Includes a 2-year limited warranty