Part #: 221-3507

Denso 221-3507 Radiator

⚙️ 3 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 the Denso Radiator for Mazda 3

The Denso 221-3507 radiator is designed specifically for the Mazda 3, providing reliable cooling performance. Engineered to meet OEM specifications, this radiator ensures proper heat dissipation to maintain optimal engine temperature.

  • Core Height: 14.438 inches
  • Core Width: 26.437 inches
  • Core Thickness: 0.625 inches
  • Inlet Diameter: 0.937 inches
  • Outlet Diameter: 0.937 inches
  • Transmission Oil Cooler: Not included

Detailed Radiator Specifications and Features

This Denso radiator features a core height of 14.438 inches and a width of 26.437 inches, providing a substantial surface area for effective heat exchange. The core thickness of 0.625 inches supports efficient coolant flow while maintaining structural integrity. Both the inlet and outlet diameters measure 0.937 inches, ensuring compatibility with the Mazda 3’s cooling system hoses. Note that this radiator does not include a transmission oil cooler, making it suitable for vehicles where a separate transmission cooler is used or not required.

Compatible Vehicles and Application

This radiator is compatible with Mazda 3 models, designed to match the original equipment dimensions and specifications. Using part number 221-3507 ensures a proper fit and function within the Mazda 3 cooling system, helping to prevent overheating and maintain engine performance.

  • Overheating issues due to radiator damage or clogging
  • Coolant leaks from cracked or corroded radiator cores
  • Reduced cooling efficiency from bent or damaged fins
  • Replacement of worn or aged radiator components
  • Maintaining optimal engine temperature for performance and longevity

Installation Notes and Tips

When installing the Denso 221-3507 radiator, ensure all hose connections match the 0.937-inch inlet and outlet diameters for a secure fit. Inspect and replace any worn hoses or clamps during installation. Properly bleed the cooling system after installation to remove air pockets and verify there are no leaks. It is recommended to follow the Mazda 3 service manual guidelines for radiator replacement procedures.

Quality Assurance and Warranty

Denso radiators are manufactured to meet strict quality standards, ensuring durability and reliable performance. The 221-3507 radiator undergoes rigorous testing to comply with OEM specifications. Warranty coverage details should be confirmed at the point of purchase, typically including protection against manufacturing defects for a specified period.

BrandDenso
Part Number221-3507
Core Height14.4380
Core Thickness0.6250
Core Width26.4370
Inlet Diameter0.9370
Outlet Diameter0.9370
Transmission Oil Cooler IncludedNO

This part fits 3 vehicles. Search below:

YearMakeModelTransmissionPositionNotes
2006Mazda3AutomaticN/A
2005Mazda3AutomaticN/A
2004Mazda3N/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:

8012696

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