Koyorad A13347 Radiator

Koyorad A13347 Radiator for BRZ, FR-S, and 86

The Koyorad A13347 radiator is an OE-equivalent replacement built for direct-fit cooling service on select Subaru, Toyota, and Scion applications. It combines an aluminum core with plastic tanks and integrated fluid cooling circuits to support factory-style thermal management.

Key Features

• Aluminum core with a single-row design for efficient heat transfer
• Plastic tank construction for OE-style fit and function
• Internal engine oil cooler included
• Internal transmission oil cooler included
• Engine oil cooler diameter: 1.625 in.
• Transmission oil cooler diameter: 1.0625 in.
• Inlet and outlet diameters: 1.5625 in.
• Core dimensions: 25.5625 in. height, 14.625 in. width, 0.625 in. thickness

Product Details

Koyorad Radiator A13347 is engineered as a direct replacement radiator for 2013-2020 Subaru BRZ, 2013-2016 Scion FR-S, and 2017-2020 Toyota 86 applications. The radiator uses a 1-row aluminum core for thermal efficiency and includes both internal engine oil cooling and internal transmission oil cooling, making it a practical OE-style solution for vehicles that rely on integrated heat exchange. Koyorad focuses on replacement radiators built to match original equipment expectations, and the A13347 follows that approach for consistent fitment and cooling-system integration.

This part cross-references select OE-style radiator applications for the same vehicle platforms.

Common Cooling Issues Addressed

• Leaking radiator tanks or core seams
• Restricted coolant flow from an aging radiator
• Overheating caused by reduced heat dissipation
• Transmission or engine oil temperature management concerns tied to the radiator assembly
• Cracked or deteriorated factory plastic tanks

Installation Notes and Tips

Verify hose connection sizes, cooler line routing, and mounting points before installation. Drain the cooling system fully, inspect hoses and clamps, and refill with the correct coolant mixture after installation. Bleed air from the system according to factory service procedures to help restore stable operating temperatures. Confirm vehicle fitment by year, make, and model before ordering.

Quality Assurance

Koyorad manufactures OE-equivalent radiators using application-specific engineering and cooling-system knowledge to support accurate replacement fitment and dependable thermal performance.