Koyorad A13678 Radiator

Koyorad A13678 Radiator Overview

The Koyorad A13678 radiator is an OE-equivalent replacement built for 2017-2020 Hyundai Ioniq and Kia Niro applications. It uses an aluminum core with a plastic tank design to support efficient heat transfer and direct-fit cooling system service.

Koyorad Radiator products are engineered with the technical experience needed to produce accurate replacement radiators for modern vehicles. This A13678 radiator is a practical choice for drivers servicing a Hyundai Ioniq or Kia Niro cooling system with the correct core dimensions and hose connections.

Key Features

• Part number: A13678
• OE-equivalent radiator replacement from Koyorad
• Aluminum core construction for thermal efficiency
• Single-row core design
• Plastic tank material
• Core dimensions: 23.9375 in. height x 16.9375 in. width x 0.625 in. thickness
• Inlet diameter: 1.3125 in.
• Outlet diameter: 1.3125 in.

Detailed Description

The Koyorad A13678 radiator is built for direct replacement service on 2017-2018 Hyundai Ioniq, 2019-2020 Hyundai Ioniq with external oil cooler, 2017-2018 Kia Niro, and 2019-2020 Kia Niro with external oil cooler. Its aluminum core and single-row layout are specified to match the cooling system requirements of these vehicles while maintaining OE-style fitment. If you are replacing a worn or leaking radiator on a Hyundai Ioniq or Kia Niro, this part number A13678 provides a focused application match for the listed model years.

Common Problems This Radiator Can Address

• Coolant leaks from a damaged or aging radiator
• Overheating caused by restricted heat dissipation
• Cracked or deteriorated plastic tank sections
• Corrosion or wear in the original cooling assembly
• Reduced cooling performance from a failing OE radiator

Installation Notes and Tips

Verify radiator dimensions, inlet and outlet size, and vehicle configuration before installation. This part is listed for N/A position applications and includes fitment notes for external oil cooler-equipped 2019-2020 Hyundai Ioniq and Kia Niro models. Confirm coolant condition, inspect hoses and clamps, and check the cooling fan and thermostat during radiator replacement.

Quality Assurance

Koyorad manufactures OE-equivalent radiators using application-specific engineering and replacement-focused construction. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.