Part #: 221-3606

Denso 221-3606 Radiator

⚙️ 4 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Subaru, Impreza
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Overview of Denso Radiator 221-3606 for Subaru Impreza

The Denso radiator part number 221-3606 is designed specifically for Subaru Impreza models, providing reliable cooling performance. This radiator includes a transmission oil cooler, making it a comprehensive cooling solution for your vehicle.

  • Core Height: 13.375 inches
  • Core Thickness: 1.000 inch
  • Core Width: 27.062 inches
  • Transmission Oil Cooler Included
  • Inlet Diameter: 1.5 inches
  • Outlet Diameter: 1.5 inches

Detailed Product Description

The Denso 221-3606 radiator is engineered to meet the cooling demands of Subaru Impreza vehicles. Its core dimensions—13.375 inches in height, 27.062 inches in width, and 1 inch in thickness—ensure efficient heat dissipation. The integrated transmission oil cooler supports optimal transmission temperature control, which is critical for maintaining transmission performance and longevity. Both the inlet and outlet diameters measure 1.5 inches, compatible with the factory hose connections on the Subaru Impreza.

Applications and Problem Solving

This radiator is compatible with Subaru Impreza models requiring a direct replacement radiator with transmission oil cooling capabilities. It addresses several common issues:

  • Overheating due to radiator core damage or clogging
  • Transmission overheating caused by inadequate oil cooling
  • Leaks or cracks in the radiator core or tanks
  • Reduced cooling efficiency from corrosion or wear
  • Compatibility issues with aftermarket or non-OEM radiators lacking transmission oil coolers

Installation Notes and Tips

When installing the Denso 221-3606 radiator on a Subaru Impreza, ensure all hose connections match the 1.5-inch inlet and outlet diameters. Properly flush the cooling system before installation to prevent contamination. Verify that the transmission oil cooler lines are securely connected to avoid leaks. It is recommended to inspect and replace any worn hoses or clamps during installation for optimal performance.

Quality Assurance and Warranty

Denso radiators are manufactured to meet OEM specifications, ensuring durability and reliable performance. The 221-3606 radiator undergoes rigorous quality control testing to maintain consistent cooling efficiency. While specific warranty details may vary, Denso typically offers a limited warranty covering defects in materials and workmanship. Consult the product documentation or manufacturer for exact warranty terms.

BrandDenso
Part Number221-3606
Core Height13.3750
Core Thickness1.0000
Core Width27.0620
Inlet Diameter1.5000
Outlet Diameter1.5000
Transmission Oil Cooler IncludedYES

This part fits 4 vehicles. Search below:

YearMakeModelTransmissionPositionNotes
2005SubaruImprezaAutomaticN/A
2004SubaruImprezaAutomaticN/A
2003SubaruImprezaAutomaticN/A
2002SubaruImprezaAutomaticN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

8012703

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.