Part #: 221-9449

Denso 221-9449 Radiator

⚙️ 5 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mazda, 3
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Overview of Denso Radiator 221-9449 for Mazda 3

The Denso radiator part number 221-9449 is designed specifically for the Mazda 3, providing reliable cooling performance. Engineered with precise core dimensions, this radiator supports efficient heat dissipation to maintain optimal engine temperature.

  • Core Height: 14.7638 inches
  • Core Width: 29.7480 inches
  • Core Thickness: 0.6299 inches
  • Inlet Diameter: 1.3125 inches
  • Outlet Diameter: 1.3125 inches
  • Transmission Oil Cooler: Not included

Detailed Radiator Specifications

This Denso radiator features a core height of approximately 14.76 inches and a width close to 29.75 inches, providing a substantial surface area for heat exchange. The core thickness of 0.63 inches ensures durability while allowing efficient coolant flow. Both the inlet and outlet diameters measure 1.3125 inches, matching the Mazda 3's cooling system connections for a secure fit. Note that this radiator does not include a transmission oil cooler, making it suitable for vehicles where a separate transmission cooler is not required.

Compatible Vehicles and Applications

  • Compatible with Mazda 3 models requiring a radiator replacement
  • Designed to maintain engine temperature under normal and demanding driving conditions
  • Ideal for addressing overheating issues related to radiator core damage or leaks
  • Suitable for replacing worn or damaged radiators to restore cooling efficiency

Installation Notes and Tips

When installing the Denso radiator 221-9449 on a Mazda 3, ensure all coolant hoses match the 1.3125-inch inlet and outlet diameters for proper sealing. Verify that the radiator mounts align with the vehicle’s frame to avoid stress on the core. It is recommended to flush the cooling system before installation to prevent contamination. Properly bleed the cooling system after installation to eliminate air pockets and ensure optimal performance.

Quality Assurance and Warranty

Denso radiators are manufactured to meet OEM specifications, ensuring compatibility and performance for the Mazda 3. While specific warranty details for part number 221-9449 are not provided here, Denso products typically come with a limited warranty covering defects in materials and workmanship. Consult the product documentation or supplier for exact warranty terms.

BrandDenso
Part Number221-9449
Core Height14.7638
Core Thickness0.6299
Core Width29.7480
Transmission Oil Cooler IncludedNo
Inlet Diameter1.31250
Outlet Diameter1.31250

This part fits 5 vehicles. Search below:

YearMakeModelPositionNotes
2018Mazda3N/AExc.Mexico Built Vehicle
2017Mazda3N/AExc. Mexico Built Vehicle
2016Mazda3N/AExc. Mexico Built Vehicle
2015Mazda3N/AExc. Mexico Built Vehicle
2014Mazda3N/AExc. Mexico Built Vehicle

* 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:

8013404

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