The CSF S550 Ford Mustang GT / Bullitt / GT350 / V6 All-Aluminum Radiator delivers exceptional cooling performance for both daily driving and motorsports environments. With over 50 years of engineering experience, CSF creates radiators that outperform stock cooling systems and provide the reliability needed for high-horsepower builds, supercharged applications, and track-driven vehicles.

This high-performance radiator features a robust 2-row 42mm core engineered with CSF’s exclusive B-Tube Technology. Unlike standard oval “O”-type tubes, CSF’s precision-formed “B” shaped tubes are lighter, stronger, and significantly more efficient. Because the B-Tube design increases internal heat transfer surface area by approximately 15%, the system achieves the cooling performance of dual smaller tubes within the same package size. This results in improved coolant flow, faster heat dissipation, and exceptional stability under heavy load.

To maximize airflow and thermal efficiency, the core incorporates ultra-efficient multi-louvered fins with a 6.5mm fin height, carefully optimized for each application through wind-tunnel testing. These design enhancements provide superior heat rejection, making this radiator an essential upgrade for any Mustang experiencing elevated temperatures from spirited driving, towing, forced induction, or track sessions.

Installation is fully drop-in, requiring no modifications. CNC-machined brackets, fittings, and “quick-connect” inlet and outlet connections ensure a precise fit with factory hoses, the OEM fan shroud, the AC condenser, and all mounting components. The all-aluminum race-style drain plug and smooth satin finish complete the radiator with durability and a clean performance appearance.

Key Features:
• 2-Row 42mm high-performance aluminum core with B-Tube Technology
• Ultra-efficient multi-louvered fins with 6.5mm fin height
• CNC-machined quick-connect inlet and outlet
• CNC-machined brackets and fittings for precise OE-level fit
• All-aluminum race-style drain plug
• Satin finish for a clean, durable appearance
• True drop-in fit—compatible with all OEM components
• No modifications required for installation

Fitment 

• 2019–2020 Ford S550 Mustang Bullitt 5L V8
• 2015–2021 Ford S550 Mustang GT 5L V8
• 2015–2020 Ford S550 Mustang Shelby GT350 5.2L V8
• 2015–2017 Ford S550 Mustang 3.7L V6

Whether you're driving a daily-driven 5.0L GT, a limited-edition Bullitt, the high-revving Shelby GT350, or the 3.7L V6 model, the CSF radiator provides unmatched reliability and cooling power. For maximum performance, stability, and longevity, CSF remains the trusted leader in high-performance cooling solutions.