Koyorad A2331 Radiator

Koyorad A2331 Radiator for Subaru Cooling Repair

The Koyorad A2331 radiator is an OE-equivalent replacement built for Subaru cooling system service. It is compatible with 2000-2004 Subaru Legacy, 2000-2004 Subaru Outback, and 2003-2006 Subaru Baja applications, making it a direct-fit option for common radiator replacement jobs.

Key Features

• Aluminum core construction for efficient heat transfer
• Plastic tank design for OE-style fitment and packaging
• Single-row core layout
• Core dimensions: 27.9375 in. wide, 13.375 in. high, 0.625 in. thick
• 1.5 in. inlet and 1.5 in. outlet diameters
• Internal transmission oil cooler included
• Transmission oil cooler diameter: 1.25 in.
• OE-equivalent replacement from Koyorad

Product Details

Koyorad A2331 is a radiator replacement engineered for Subaru Legacy, Subaru Outback, and Subaru Baja cooling systems within the listed model years. The aluminum core and plastic tank construction follow an OE-style layout, while the integrated transmission oil cooler supports vehicles equipped with automatic transmission cooling through the radiator. Koyorad positions this radiator as a replacement built from its OE-equivalent manufacturing experience, and the A2331 part number is the reference to verify application before ordering.

Common Repair Applications

• Leaking radiator tanks or seams
• Restricted coolant flow from an aging core
• Overheating caused by reduced heat exchange
• Transmission fluid temperature control issues in radiator-equipped systems
• Cracked or corroded factory radiator assemblies

Installation Notes

Confirm radiator dimensions, inlet and outlet size, and transmission cooler connections before installation. This part cross-references no listed aftermarket numbers in the provided data. For Subaru Legacy, Subaru Outback, and Subaru Baja service, compare the original radiator layout to the Koyorad A2331 radiator to ensure the cooler ports and hose routing match the vehicle configuration.

Quality Assurance

Koyorad manufactures OE-equivalent radiators using application-specific engineering and replacement-focused production standards. The A2331 radiator is built to match the listed Subaru fitment and cooling-system requirements for a direct replacement approach.

• Fits 2003-2006 Subaru Baja, N/A
• Fits 2000-2004 Subaru Legacy, N/A
• Fits 2000-2004 Subaru Outback, N/A