Koyorad A13814 Radiator

Koyorad A13814 Radiator Overview

The Koyorad A13814 radiator is an OE-equivalent replacement built for controlled cooling performance and direct-fit service. It is engineered for 2018-2020 Buick Regal Sportback and 2018-2020 Buick Regal TourX applications with an external oil cooler, making it a focused choice for Buick Regal cooling system repair.

Koyorad Radiator products are developed with the technical experience needed to produce accurate replacement radiators that match factory-style fitment and function. The A13814 follows that approach with an aluminum core and plastic tanks for a practical OE-style construction.

Key Features

• OE-equivalent radiator replacement from Koyorad
• Aluminum core construction for efficient heat transfer
• Plastic tank design for factory-style replacement fitment
• Core height: 26
• Core width: 17.8125
• Core thickness: 1.0625
• Inlet diameter: 1.3125
• Outlet diameter: 1.3125
• Fits Buick Regal Sportback and Buick Regal TourX models with external oil cooler
• Part number: A13814

Detailed Description

The Koyorad A13814 radiator is built for drivers and technicians replacing a worn or leaking radiator in select Buick Regal platforms. With a 26-inch core height, 17.8125-inch core width, and 1.0625-inch core thickness, this radiator is sized for the specified applications and uses 1.3125-inch inlet and outlet connections. The aluminum core supports heat dissipation, while the plastic tanks reflect common OE-style radiator construction. If you are servicing a 2018-2020 Buick Regal Sportback or 2018-2020 Buick Regal TourX with an external oil cooler, the Koyorad A13814 provides a direct replacement option for the cooling system.

This part number, A13814, is intended for buyers searching for a Buick Regal Sportback radiator replacement, a Buick Regal TourX radiator replacement, or a Koyorad A13814 radiator for external oil cooler applications.

What It Helps Address

• Coolant leaks from a damaged radiator core or tank
• Overheating caused by restricted or inefficient heat exchange
• Cracked or aged plastic end tanks
• Corrosion or internal wear in the original radiator
• Cooling system service on Buick Regal Sportback and Regal TourX models

Installation Notes and Tips

Verify radiator dimensions, inlet and outlet size, and external oil cooler configuration before installation. Inspect hoses, clamps, and related cooling system components during replacement to help prevent repeat service. Flush the cooling system if contamination or debris is present, and confirm proper coolant fill and bleed procedures after installation. Confirm fitment by model year and cooling configuration before ordering the Koyorad A13814.

Quality Assurance

Koyorad focuses on OE-equivalent replacement radiators and applies manufacturing experience to produce accurate cooling system components. The A13814 is built to meet the needs of the listed Buick Regal applications with a factory-style replacement approach.