Part #: 221-3221

Denso 221-3221 Radiator

⚙️ 8 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: Honda, Civic and CRX
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Overview of the Denso Radiator for Honda Civic and CRX

The Denso radiator part number 221-3221 is designed specifically for Honda Civic and CRX models. This radiator includes a transmission oil cooler and features precise core dimensions to ensure efficient cooling performance.

  • Core Height: 12.875 inches
  • Core Width: 25.937 inches
  • Core Thickness: 0.625 inches
  • Inlet Diameter: 1.125 inches
  • Outlet Diameter: 1.125 inches
  • Includes Transmission Oil Cooler

Detailed Radiator Specifications and Features

The Denso 221-3221 radiator is engineered with a core height of 12.875 inches, a width of 25.937 inches, and a thickness of 0.625 inches, providing optimal surface area for heat dissipation. Both the inlet and outlet diameters measure 1.125 inches, ensuring compatibility with the cooling system hoses of Honda Civic and CRX vehicles. The integrated transmission oil cooler supports the vehicle’s transmission system by maintaining proper fluid temperature, which is critical for transmission longevity and performance.

Compatible Vehicles and Applications

This radiator is compatible with select Honda Civic and CRX models, making it a suitable replacement for original equipment radiators in these vehicles. It is designed to address common cooling system issues such as overheating and transmission fluid temperature regulation.

  • Overheating due to radiator core damage or clogging
  • Transmission fluid overheating affecting shifting performance
  • Leaks or cracks in the radiator core or tanks
  • Reduced cooling efficiency from corrosion or wear

Installation Notes and Tips

When installing the Denso 221-3221 radiator, ensure that the inlet and outlet hose diameters match the vehicle’s existing hoses to avoid leaks. Properly flush the cooling system before installation to remove debris and contaminants. Verify that the transmission oil cooler lines are correctly connected to maintain transmission cooling functionality. It is recommended to inspect all related components such as hoses, clamps, and thermostat during installation.

Quality Assurance and Warranty Information

Denso radiators are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The 221-3221 radiator undergoes rigorous quality control testing to verify core integrity and cooling efficiency. Warranty coverage details should be confirmed with the distributor or manufacturer, as they may vary by region.

BrandDenso
Part Number221-3221
Core Height12.8750
Core Thickness0.6250
Core Width25.9370
Inlet Diameter1.1250
Outlet Diameter1.1250
Transmission Oil Cooler IncludedYES

This part fits 8 vehicles. Search below:

YearMakeModelTransmissionPositionNotes
1991HondaCivicAutomaticN/Aw/ DENSO Radiator
1991HondaCRXAutomaticN/Aw/ DENSO Radiator
1990HondaCivicAutomaticN/Aw/ DENSO Radiator
1990HondaCRXAutomaticN/Aw/ DENSO Radiator
1989HondaCivicAutomaticN/Aw/ DENSO Radiator
1989HondaCRXAutomaticN/Aw/ DENSO Radiator
1988HondaCivicAutomaticN/Aw/ DENSO Radiator
1988HondaCRXAutomaticN/Aw/ DENSO Radiator

* 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:

8010886

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