Koyorad A13505 Radiator

Koyorad A13505 Radiator Overview

The Koyorad A13505 radiator is an OE-equivalent replacement built for Mercedes-Benz cooling system service. It combines an aluminum core with plastic tanks and an integrated engine oil cooler to support factory-style thermal management in select GLE, GL, and ML applications.

Compatible with Mercedes-Benz GLE350, GLE43 AMG, GLE550e, GLE300d, GL350, GL450, ML250, ML350, and ML400 applications, this radiator is built around the original fitment profile for direct replacement service. The Koyorad A13505 is a practical choice when replacing a leaking, clogged, or damaged radiator on these vehicles.

Key Features

• Part number: A13505
• Aluminum core construction with plastic end tanks
• Single-row core design
• Core dimensions: 23.4375 in. height x 22.625 in. width x 1.0625 in. thickness
• Inlet and outlet diameter: 1.25 in.
• Integrated internal engine oil cooler
• Engine oil cooler included: yes
• Plate-style oil cooler with 3 plates

Product Details

Koyorad Radiator products are positioned as OE-equivalent replacements, and the A13505 follows that approach with application-specific sizing and integrated cooling features. The aluminum core helps transfer heat efficiently, while the built-in engine oil cooler adds the cooling capacity required for vehicles equipped with factory oil cooling. For Mercedes-Benz owners servicing a GLE350 radiator, GL450 radiator, or ML350 radiator application, this part number provides a direct replacement format that matches the original system layout.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems This Radiator Can Address

• Coolant leaks from a cracked or aging radiator
• Overheating caused by restricted coolant flow
• Damaged or corroded radiator core fins
• Failure of the integrated engine oil cooler assembly
• Reduced cooling performance in high-load driving conditions

Installation Notes and Tips

Verify inlet and outlet hose diameter, core size, and oil cooler configuration before installation. Drain the cooling system fully, inspect hoses and clamps for wear, and confirm that the radiator mounts and connections match the original Mercedes-Benz layout. After installation, refill with the correct coolant specification and bleed the system carefully to remove trapped air.

Quality Assurance

Koyorad manufactures OE-equivalent radiators using application-specific engineering and cooling-system experience. The A13505 is built to replace the original radiator assembly in confirmed Mercedes-Benz fitments, including 2016-2019 GLE350, 2017-2019 GLE43 AMG, 2016-2018 GLE550e, 2016-2017 GLE300d, 2015-2016 GL350, 2016-2017 GL450, 2015 GL450, 2015 ML250, 2012-2015 ML350, 2015 ML400, and 2013-2014 GL350 models.