Denso 221-9229 Radiator

Denso Radiator for Subaru Impreza

The Denso 221-9229 radiator is built for Subaru Impreza cooling-system service with OE-style fitment and construction. It is engineered around the core dimensions, tank design, fin pitch, and materials required for consistent engine temperature control in daily driving and demanding conditions.

• Core height: 13.3900
• Core width: 27.9500
• Core thickness: 0.6300
• Inlet diameter: 1.5000
• Outlet diameter: 1.5200
• Transmission oil cooler included: yes
• OE-focused radiator design for fitment and cooling performance

OE-Style Cooling Performance

Denso supplies radiators to original equipment vehicle manufacturers, and the 221-9229 reflects that OE development background. The radiator is configured to match factory requirements for the Subaru Impreza, helping maintain proper coolant flow and heat transfer through the core. This part number, 221-9229, is a direct replacement choice for drivers servicing 2002-2004 Subaru Impreza and 2005 Subaru Impreza from 04/01/2005, as well as 2006-2007 Subaru Impreza models.

This part cross-references Subaru (e.g., 45111-FE051, 45119-FE050) for the same application.

Vehicle Fitment

• Fits 2002-2004 Subaru Impreza, N/A
• Fits 2005 Subaru Impreza, N/A, from 04/01/2005
• Fits 2006-2007 Subaru Impreza, N/A

Common Cooling Issues This Radiator Can Address

• Coolant leaks from a damaged or aging radiator
• Overheating caused by restricted heat transfer
• Transmission cooling concerns when the factory cooler circuit is part of the system
• Cracked or weakened radiator tanks and core seams
• Poor fitment after replacing a worn original radiator

Installation Notes and Tips

Verify core dimensions, inlet and outlet sizes, and transmission cooler routing before installation. Flush the cooling system, inspect hoses and clamps, and confirm the radiator mounts securely in the factory location on the Subaru Impreza. After installation, refill with the correct coolant mixture and bleed air from the system according to vehicle service procedures.

Quality Assurance

Denso radiators are built to meet OE manufacturer standards and are tested for durability and function before release. The 221-9229 is designed for reliable cooling performance and fitment on the listed Subaru Impreza applications.