CSF 3725 OE Replacement Radiator Aluminum Core BMW F22 F30 F32

The CSF 3725 is an OE-style replacement radiator engineered for BMW F22/F23 2-Series, F30/F31/F34 3-Series, and F32/F33/F36 4-Series vehicles. This radiator features plastic tank-aluminum core construction designed to meet original equipment specifications for reliable cooling performance and direct-fit installation.

Key Features:

• OEM-specified plastic tank-aluminum core construction for optimal heat dissipation
• Tanks manufactured from virgin grade engineered plastic resins with glass-filled reinforcement for enhanced strength and durability
• Special grade EPDM rubber gaskets engineered to withstand extreme temperatures down to -120°F
• High-performance multi-louvered fin design meeting OEM specifications for maximum cooling efficiency
• Welded tube or latest generation B-Tube design for improved fluid flow
• 100% leak tested at 150% of operating pressure before leaving the factory
• Drop-in fit design requiring no modifications for installation
• Wind tunnel tested and validated for cooling performance

CSF radiators are manufactured by an ISO/TS certified company with over 50 years of experience in the cooling industry. With more than 30 million units sold worldwide, CSF maintains rigorous quality standards including individual leak testing, vibration-cycle testing, and thermal-cycle testing to ensure reliable performance in both everyday driving and demanding conditions.