CSF 3551 Radiator - Left

CSF 3551 2 Row All Aluminum Radiator

The CSF 3551 is a 2-row all-aluminum radiator built for select Porsche applications that need efficient cooling in a compact cross-flow design. It uses aluminum for both the core and tanks, with a quick-connect inlet pipe for a direct-fit style installation.

Compatible with Porsche Boxster, Porsche 911, and Porsche Cayman applications on the left side, this radiator is engineered to match the listed dimensions and connection layout. The CSF 3551 is a practical replacement choice for drivers looking for a radiator built around performance-focused materials and OE-style fitment.

Key Features

• 2-row all-aluminum construction
• Aluminum core and aluminum tanks
• Cross-flow radiator design
• Core thickness: 1 5/8 in.
• Core size: 14 5/16 in. wide x 13 7/16 in. long
• Inlet and outlet diameter: 1 3/8 in., right side
• Quick-connect inlet pipe
• Cap not included
• CSF Part Number: 3551

Product Details

CSF builds radiators to high-performance standards and validates cooling performance through laboratory wind-tunnel testing. The brand manufactures a wide range of radiator designs for many vehicle platforms, and this CSF 3551 reflects that engineering approach with an all-aluminum core and tank construction sized for the specified Porsche fitments. The 2-row layout and cross-flow configuration support efficient heat transfer in a compact package, while the quick-connect inlet pipe helps maintain the intended connection style.

This part cross-references Carlson 13164 for the same application. The CSF 3551 is listed for 2005-2012 Porsche Boxster, left; 2005-2011 Porsche 911, left; 2006-2011 Porsche Cayman, left; and 2005 Porsche 911, N/A.

Common Cooling Issues It Can Address

• Cracked or leaking radiator tanks
• Restricted coolant flow from an aging radiator core
• Heat buildup from reduced cooling efficiency
• Corrosion-related radiator deterioration
• Fitment problems caused by a damaged or incorrect replacement radiator

Installation Notes

Verify core dimensions, inlet and outlet orientation, and left-side application before installation. This radiator does not include a cap. Confirm the quick-connect inlet pipe style matches the vehicle’s cooling system connections and inspect hoses, clamps, and surrounding components before final assembly.

Quality Assurance

CSF manufactures radiators to controlled production standards and tests cooling performance during development to validate design and fitment. The all-aluminum construction is intended to provide a durable replacement option for the listed Porsche Boxster, 911, and Cayman applications.