Koyorad A2428 Radiator

Koyorad A2428 Radiator for Corolla, Matrix, and Vibe

The Koyorad A2428 radiator is an OE-equivalent replacement built for 2003-2008 Pontiac Vibe, 2003-2008 Toyota Corolla, and 2003-2008 Toyota Matrix applications. It combines an aluminum core with plastic tanks and includes an internal transmission oil cooler for direct replacement use in automatic-transmission cooling systems.

Key Features

• OE-style replacement radiator from Koyorad
• Aluminum core with plastic tank construction
• Single-row core design
• Core dimensions: 23.625 in. height, 14.625 in. width, 0.625 in. thickness
• 1.3125 in. inlet and outlet diameters
• Internal transmission oil cooler included
• Transmission oil cooler diameter: 0.75 in.

Detailed Description

Koyorad A2428 is a direct-fit radiator for Toyota Corolla, Toyota Matrix, and Pontiac Vibe models from 2003 through 2008. It is built with an aluminum core for efficient heat transfer and plastic end tanks for OE-style fitment. The integrated transmission oil cooler supports vehicles equipped with automatic transmission cooling connections, making this radiator a practical replacement for worn, leaking, or restricted factory units. The Koyorad A2428 radiator is a straightforward choice when you need a replacement that matches the original cooling system layout.

This part cross-references no listed part numbers for the same application.

What This Radiator Helps Address

• Coolant leaks from a cracked or corroded radiator
• Overheating caused by reduced cooling efficiency
• Transmission fluid temperature issues tied to the radiator cooler circuit
• Restricted coolant flow from an aging core
• Replacement needs after impact damage or tank failure

Installation Notes and Tips

Verify inlet and outlet hose sizes, cooler line routing, and mounting points before installation. Flush the cooling system and inspect hoses, clamps, and the thermostat before installing the new radiator. Confirm automatic-transmission cooler connections are clean and properly sealed during assembly. Fits 2003-2008 Pontiac Vibe, N/A. Fits 2003-2008 Toyota Corolla, N/A. Fits 2003-2008 Toyota Matrix, N/A.

Quality Assurance

Koyorad states that its radiators are manufactured as OE-equivalent replacements using technical experience developed for accurate fit and dependable replacement performance. Part number A2428 is built to meet the needs of the listed Corolla, Matrix, and Vibe applications.