Koyorad A2403-1 Radiator

Koyorad A2403-1 Radiator for Toyota RAV4

The Koyorad A2403-1 radiator is an OE-equivalent replacement built for 2001-2005 Toyota RAV4 applications. It combines an aluminum core with plastic tanks and includes an internal transmission oil cooler for direct replacement service on the listed vehicles.

Key Features

• Fits 2001-2005 Toyota RAV4
• Part number: A2403-1
• Aluminum core construction with a single-row design
• Plastic tank material
• Core dimensions: 30.0625 in. wide, 14.75 in. high, 1 in. thick
• Inlet and outlet diameters: 1.375 in.
• Internal transmission oil cooler included
• Transmission oil cooler diameter: 0.75 in.

Detailed Description

Koyorad A2403-1 is a radiator replacement for Toyota RAV4 models from 2001 through 2005. It is built with an aluminum core and plastic tanks to match OE-style construction, and it includes an internal transmission oil cooler for vehicles equipped with that feature. The single-row core layout and listed inlet and outlet sizes support a direct-fit replacement approach for the specified Toyota RAV4 years. If you are sourcing a radiator for a 2001-2005 Toyota RAV4, A2403-1 provides the key dimensions and cooler integration needed for a proper match.

Common Issues This Part Can Address

• Cracked or leaking radiator tanks
• Corrosion or damage in the radiator core
• Transmission cooler leakage within the radiator assembly
• Overheating caused by restricted coolant flow
• Cooling system failure on a Toyota RAV4 radiator replacement

Installation Notes and Tips

Verify radiator dimensions, inlet and outlet sizes, and transmission cooler connections before installation. Confirm that your Toyota RAV4 uses the same radiator configuration and internal transmission oil cooler setup as the original unit. Flush the cooling system, inspect hoses and clamps, and refill with the correct coolant mixture after installation. Part number A2403-1 should be matched to the vehicle’s year and cooling system layout before removal of the original radiator.

Quality Assurance

Koyorad states that its radiators are OE-equivalent replacements produced with the technical experience needed for accurate replacement fitment. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.