CSF 3140 Radiator

OE-Style Cooling for Subaru Forester

CSF 3140 is a direct-fit radiator built with an aluminum core and plastic tanks in an OE-style layout. It is engineered for 2004-2005 Subaru Forester applications and uses a down-flow design with 1 9/16 in. inlet and outlet connections for a factory-style cooling system replacement.

The CSF 1 Row Plastic Tank Aluminum Core line focuses on OE-style construction with performance validation. CSF manufactures a wide range of radiator models and uses lab testing, including wind tunnel validation, to verify cooling performance across its product range.

Key Features

• Fits 2004-2005 Subaru Forester, N/A
• Part number 3140
• 1-row radiator with 5/8 in. core thickness
• Aluminum core with plastic tanks
• Down-flow configuration
• Core dimensions: 27 1/16 in. wide x 14 3/16 in. long
• Inlet: 1 9/16 in. right; outlet: 1 9/16 in. left
• Oil cooler: 14 3/4 in. high-efficiency concentric type
• OE-style plastic tank and aluminum core construction

Detailed Description

CSF 3140 is a replacement radiator for the 2004-2005 Subaru Forester that follows an OE-style design with plastic tanks and an aluminum core. The 1-row construction, down-flow layout, and factory-style inlet and outlet sizing help maintain the original cooling system configuration while replacing a worn or leaking radiator. This part number 3140 is built for vehicles that require a radiator with a right-side inlet and left-side outlet arrangement.

This radiator cross-references Anchor 2812 and Spectra Premium CU2812 for the same application.

Common Cooling Issues It Can Address

• Coolant leaks from cracked or aged radiator tanks
• Restricted cooling performance from a clogged or corroded core
• Overheating caused by reduced heat transfer efficiency
• Damaged inlet or outlet connections
• Failure of the original radiator on a 2004-2005 Subaru Forester

Installation Notes and Tips

Verify core dimensions, inlet and outlet orientation, and oil cooler configuration before installation. This radiator is listed without a cap, so reuse or replace the cap separately as required by the vehicle setup. Confirm hose fitment and inspect related cooling components such as hoses, clamps, and thermostat during radiator replacement.

Quality Assurance

CSF states that its factories are ISO/TSO certified and that its radiators are engineered to high-performance standards. The brand also notes laboratory wind tunnel testing for cooling validation and more than 50 years of radiator manufacturing experience across a broad catalog of applications.