Koyorad A13121-1 Radiator

Koyorad A13121-1 Radiator for Acura TL

The Koyorad A13121-1 radiator is an OE-equivalent replacement built for 2009-2011 Acura TL applications. It uses an aluminum core with plastic tanks and integrated transmission oil cooler connections to match the original cooling system layout.

Key Features

• Fits 2009-2011 Acura TL, N/A
• Aluminum core construction for efficient heat transfer
• Single-row core design with 16.75 in. core height, 31.125 in. core width, and 1.0625 in. core thickness
• 1.25 in. inlet and 1.25 in. outlet diameters
• Plastic tank material for OE-style fit and function
• Transmission oil cooler with 1.0625 in. diameter and 5 plate quantity
• Part number A13121-1 for direct identification

Detailed Description

Koyorad A13121-1 is a radiator replacement for the Acura TL that follows OE-equivalent dimensions and connection sizes for a straightforward service replacement. The aluminum core is paired with plastic tanks to mirror the factory-style construction used in many late-model cooling systems, while the built-in transmission oil cooler supports vehicles equipped with automatic transmission cooling through the radiator assembly. For shoppers searching for a 2009-2011 Acura TL radiator, Acura TL cooling system replacement, or Koyorad A13121-1 radiator, this unit provides the core measurements and hose connections needed for a proper match.

Koyorad focuses on replacement radiators built from technical manufacturing experience, and this part reflects that approach with application-specific sizing rather than a universal design. The A13121-1 is a direct-fit style radiator for the Acura TL platform covered by the listed fitment.

Common Problems This Radiator Can Address

• Coolant leaks from a damaged or aging radiator core
• Overheating caused by restricted heat dissipation
• Cracked or deteriorated plastic tank sections
• Transmission fluid temperature concerns tied to radiator cooler failure
• Fitment issues from using an incorrect replacement radiator

Installation Notes and Tips

Verify hose inlet and outlet sizes, core dimensions, and transmission cooler connection points before installation. Inspect radiator hoses, clamps, and the cooling fan system during replacement so the new radiator is not installed into a worn cooling circuit. Flush the cooling system if contamination, rust, or mixed coolant is present, and refill with the correct coolant specification for the vehicle.

Quality Assurance

Koyorad manufactures OE-equivalent radiators with application-specific engineering for replacement use. The A13121-1 is built to match the listed Acura TL fitment and cooling-system requirements.