Denso 221-9478 Radiator

Denso 221-9478 Radiator for Honda Accord

The Denso 221-9478 radiator is an OE-style cooling component built for specific Honda Accord inverter cooling applications. It uses OE-matched core dimensions, inlet and outlet sizing, and material specifications to support proper thermal management and fitment.

Key Features

• Core height: 12.8125 in.
• Core width: 7.3750 in.
• Core thickness: 1.8750 in.
• Inlet diameter: 0.6875 in.
• Outlet diameter: 0.6875 in.
• No transmission oil cooler included
• Built to Denso OE configuration standards for radiator fitment and function

Detailed Description

Denso 221-9478 is a radiator engineered for inverter cooling on select Honda Accord models. Denso supplies radiators to OE vehicle manufacturers worldwide, and this part reflects that OE-focused experience through its core dimensions, tank configuration, fin pitch, and materials. The result is a radiator intended to maintain stable cooling performance while matching the original application requirements for the Honda Accord.

This part cross-references Honda 1J010-5K0-004 and 1J010-5K0-014 for the same application. It also aligns with aftermarket references such as APDI 13439 and Spectra Premium CU13439.

Vehicle Fitment

• Fits 2017 Honda Accord, N/A, Inverter Cooling
• Fits 2014-2015 Honda Accord, N/A, Inverter Cooling

What This Radiator Helps Address

• Overheating caused by a failing inverter cooling radiator
• Coolant leaks from a damaged or corroded radiator core
• Restricted coolant flow from internal blockage or deterioration
• Poor heat transfer that can affect engine and inverter cooling performance
• Fitment issues from using a radiator with incorrect dimensions or hose sizes

Installation Notes and Tips

Verify the core height, width, thickness, and hose diameters against the original unit before installation. Confirm the vehicle is one of the listed Honda Accord inverter cooling applications, and inspect hoses, clamps, and coolant condition during replacement. Proper system bleeding and refill procedures should be followed after installation to help restore normal cooling operation.

Quality Assurance

Denso radiators are built to OE standards and undergo durability and function testing before release. That manufacturing approach supports consistent fitment and dependable cooling performance for the listed Honda Accord applications.