CSF 3671 Radiator

OE-Style Cooling for Ford and Lincoln Applications

The CSF 3671 radiator is built for OE-style replacement in select Ford and Lincoln trucks and SUVs. It uses a 1-row aluminum core with plastic tanks and a cross-flow layout to match the original cooling package on listed applications.

Designed for 2011-2014 Ford F-150 models and 2015-2017 Ford Expedition and Lincoln Navigator models without the tow package, this radiator follows the factory-style configuration for straightforward fitment. The CSF 3671 also includes a high-efficiency plate-type oil cooler and a quick-connect outlet pipe.

Key Features

• Brand: CSF
• Part number: 3671
• 1-row radiator construction
• Aluminum core with plastic tanks
• Cross-flow design
• Core thickness: 1 1/4 in.
• Core dimensions: 31 9/16 in. length x 16 5/16 in. width
• Inlet diameter: 1 1/2 in., right side
• Outlet diameter: 1 1/2 in., left side
• Cap not included
• O.E.M.-style plastic tanks and aluminum core with quick-connect outlet pipe
• High-efficiency plate-type oil cooler

Product Details

CSF manufactures radiators to high-performance standards and validates cooling performance through laboratory wind tunnel testing. The brand has supplied radiators worldwide for decades and offers a broad catalog of OE-style replacement coverage. The CSF 3671 follows that approach with a factory-style plastic tank and aluminum core design for the listed Ford F-150, Ford Expedition, and Lincoln Navigator applications.

This part cross-references BBB Industries 13226 and Carlson 13225 for the same application. For buyers searching Ford F-150 radiator 2011-2014, Expedition radiator 2015-2017, or Lincoln Navigator radiator 2015-2017, CSF 3671 is a direct-fit OE-style replacement reference.

Common Cooling Issues It Can Address

• Cracked or leaking radiator tanks
• Restricted coolant flow from an aging core
• Overheating caused by reduced heat transfer
• Damaged inlet or outlet connections
• Oil cooler wear in factory-equipped cooling systems

Installation Notes and Fitment

• Fits 2011-2014 Ford F-150, N/A, OE Style Design; Standard Cooling & Super Cooling; 1 Row Plastic Tank Aluminum Core
• Fits 2011-2014 Ford F-150, N/A, OE Style Design; Standard Cooling; 1 Row Plastic Tank Aluminum Core
• Fits 2015-2017 Ford Expedition, N/A, OE Style Design; w/o Tow Package; 1 Row Plastic Tank Aluminum Core
• Fits 2015-2017 Lincoln Navigator, N/A, OE Style Design; w/o Tow Package; 1 Row Plastic Tank Aluminum Core

Verify the vehicle’s cooling package and connection style before installation. This radiator uses a quick-connect outlet pipe and is built for the listed OE-style applications, so matching the original configuration is important for proper fitment.

Quality Assurance

CSF states that its factories are ISO/TSO certified and that its radiators are engineered for cooling performance validation. The brand also notes long-term global production experience across a wide range of vehicle applications.