CSF 7239 Ultra-High-Performance 2-Row Triple-Pass Radiator for 2016-2018 Ford Focus RS (42mm)

Fits 2016-2018 Ford Focus RS.

Maximize the cooling efficiency of your high-performance EcoBoost with the CSF 7239 Ultra-High-Performance Radiator. Engineered to replace the restrictive factory unit, this radiator features a massive 42mm 2-row aluminum core that significantly increases fluid capacity and thermal soak threshold. The triple-pass flow configuration forces coolant across the core three times before exiting, ensuring the lowest possible outlet temperatures for track days or spirited driving.

CSF utilizes exclusive B-Tube technology, which increases heat transfer surface area by approximately 15% compared to standard oval tubes. This is paired with 6.5mm multi-louvered fins to maximize airflow and heat dissipation. Built for durability and performance, the unit features 100% TIG-welded aluminum construction and CNC-machined mounting points for a true drop-in fit that requires no modifications to your factory shrouds or hoses.

• Manufacturer Part Number: 7239
• 42mm 2-row ultra-high-performance aluminum core
• Triple-pass flow design for maximum temperature reduction
• CSF exclusive B-Tube technology for 15% better heat transfer
• 6.5mm tall ultra-efficient multi-louvered fins
• 100% all-aluminum TIG-welded construction
• CNC machined mounting pins and brackets
• OEM-style inlet/outlet connections
• Individually leak and pressure tested
• 2-year limited warranty