Koyorad A1839 Radiator

Koyorad A1839 Radiator for Subaru Legacy

The Koyorad A1839 radiator is an OE-equivalent replacement built for 1995-1999 Subaru Legacy applications. It combines an aluminum core with plastic tanks and includes an internal transmission oil cooler for direct replacement service.

Key Features

• Fits 1995-1999 Subaru Legacy, N/A
• Aluminum core with plastic tank construction
• Single-row core design
• Core dimensions: 26.5 in. height, 15.9375 in. width, 0.625 in. thickness
• 1.5 in. inlet and 1.5 in. outlet diameters
• Internal transmission oil cooler included
• Transmission oil cooler diameter: 0.875 in.

Detailed Description

Koyorad A1839 is a replacement radiator engineered for Subaru Legacy cooling system service across the 1995, 1996, 1997, 1998, and 1999 model years. It is built with an aluminum core for efficient heat transfer and plastic end tanks for OE-style fitment, and it includes an internal transmission oil cooler to match the original equipment layout on supported vehicles. For buyers searching for a Subaru Legacy radiator replacement, Koyorad A1839 offers a direct-fit solution with the dimensions and hose connections needed for the listed application.

Koyorad focuses on OE-equivalent radiator construction, using manufacturing experience to produce replacement cooling components that align with factory-style specifications. This part number, A1839, is intended for drivers replacing a worn, leaking, or restricted radiator on a compatible Subaru Legacy.

What This Radiator Helps Address

• Coolant leaks from a cracked or aging radiator
• Overheating caused by reduced cooling efficiency
• Transmission fluid temperature control through the built-in cooler
• Corrosion or internal blockage in the original radiator
• Replacement needs after impact or tank damage

Installation Notes and Tips

Verify hose diameter, core size, and transmission cooler line routing before installation. Flush the cooling system, inspect hoses and clamps, and confirm the radiator cap and fan operation are in good condition. Because this radiator includes an internal transmission oil cooler, check all cooler line connections carefully during installation and refill the cooling system with the correct coolant mixture.

Quality Assurance

Koyorad manufactures OE-equivalent radiators with application-specific dimensions and cooling features for replacement use. Part number A1839 is built to match the listed Subaru Legacy fitment and cooling system requirements.