Koyo A13782-1 OE Replacement Radiator

The Koyo A13782-1 is an OE replacement radiator engineered to meet or exceed original equipment standards. Manufactured by Koyorad — Japan's largest aftermarket radiator manufacturer with roots in radiator technology dating back to 1956 — this unit is built for direct-fit installation with no cutting, drilling, or modifications required.

Koyorad's OE replacement radiators feature plastic end tanks paired with an aluminum core, delivering reliable cooling performance and long service life. Each unit is produced in Koyorad's privately owned, ISO 9001 certified manufacturing facilities, ensuring consistent quality from core to tank.

Key Features:

• Meets or exceeds OEM cooling specifications
• Plastic tank with aluminum core construction
• True plug-and-play fitment — no modifications necessary
• Engineered and tested to OE standards in ISO 9001 certified facilities
• Brazed using Koyorad's Nocolok brazing process for superior joint integrity
• Precision tube and fin alignment for optimal coolant flow and heat transfer
• Application-specific inlet/outlet positioning and mounting points

Koyorad recommends using a 50/50 prediluted antifreeze/distilled water mix and performing a full cooling system flush prior to installation. A complete cooling system flush — including the heater core — is advised to remove old coolant, mineral deposits, and contaminants before fitting this radiator.