Part #: 221-3505

Denso 221-3505 Radiator

⚙️ 7 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: Mazda, Miata
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Overview of Denso Radiator for Mazda Miata

The Denso 221-3505 radiator is designed specifically for Mazda Miata models, providing reliable cooling performance. Engineered with precise core dimensions, this radiator supports efficient heat dissipation to maintain optimal engine temperature.

  • Core Height: 12.625 inches
  • Core Width: 25.312 inches
  • Core Thickness: 0.625 inches
  • Inlet Diameter: 1.25 inches
  • Outlet Diameter: 1.25 inches
  • Transmission Oil Cooler: Not included

Detailed Radiator Specifications

This Denso radiator (part number 221-3505) features a core height of 12.625 inches and a width of 25.312 inches, providing a substantial surface area for effective cooling. The core thickness of 0.625 inches ensures durability while allowing sufficient coolant flow. Both the inlet and outlet diameters measure 1.25 inches, compatible with the Mazda Miata’s cooling system hoses. Note that this radiator does not include a transmission oil cooler, making it suitable for Miata models without integrated transmission cooling requirements.

Compatible Vehicles and Applications

Compatible with Mazda Miata vehicles, this radiator is designed to meet the specific cooling demands of this model. The Denso 221-3505 radiator is ideal for replacing worn or damaged radiators to restore proper engine temperature regulation and prevent overheating.

  • Overheating issues due to radiator leaks or blockages
  • Coolant loss from damaged radiator cores
  • Reduced cooling efficiency from corrosion or wear
  • Engine temperature fluctuations affecting performance
  • Replacement during routine maintenance or repairs

Installation Notes and Tips

When installing the Denso 221-3505 radiator on a Mazda Miata, ensure all hose connections match the 1.25-inch inlet and outlet diameters for a secure fit. Properly flush the cooling system before installation to remove debris and contaminants. Verify that mounting points align with the vehicle’s frame to avoid stress on the radiator core. Use manufacturer-recommended coolant and follow torque specifications for all fasteners.

Quality Assurance and Warranty

Denso radiators are manufactured to meet OEM standards, ensuring reliable performance and durability. The 221-3505 radiator undergoes rigorous quality control to maintain consistent core dimensions and material integrity. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.

BrandDenso
Part Number221-3505
Core Height12.6250
Core Thickness0.6250
Core Width25.3120
Inlet Diameter1.2500
Outlet Diameter1.2500
Transmission Oil Cooler IncludedNO

This part fits 7 vehicles. Search below:

YearMakeModelTransmissionPositionNotes
2005MazdaMiataManualN/A
2004MazdaMiataManualN/A
2003MazdaMiataManualN/A
2002MazdaMiataManualN/A
2001MazdaMiataManualN/A
2000MazdaMiataManualN/A
1999MazdaMiataManualN/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:

8012268

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