Denso 221-4505 Radiator
OE Quality 60-Day Returns
Denso

Denso 221-4505 Radiator

Brand Denso 221-4505
Core Height 12.9370
Core Thickness 1.0000
Core Width 27.1870
Inlet Diameter 1.4370
Outlet Diameter 1.4370
Transmission Oil Cooler Included NO
Fits Mazda · 3 vehicles

OE experience. Built with OE-level know-how for reliable performance and fit.

Strictly tested. Passes durability and function tests for dependable cooling.

Radiator performance. Essential for proper engine cooling and function.

Cross-references APDI 8012408, CSF 2609 and CSF 2941 for the same application. See all 10.

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Denso Radiator for Mazda 626

The Denso 221-4505 radiator is built for 2000-2002 Mazda 626 applications and follows OE-style sizing and construction standards. With a 12.9370-inch core height, 27.1870-inch core width, and 1.0000-inch core thickness, it is specified to match the cooling system layout used on these vehicles.

Denso’s OE supply background is reflected in the radiator’s fitment-focused design, including 1.4370-inch inlet and outlet diameters and no transmission oil cooler provision. For drivers searching for a Mazda 626 radiator replacement, Denso 221-4505 offers a direct-fit cooling component for the listed model years.

  • Fits 2000-2002 Mazda 626, N/A
  • Core height: 12.9370 in.
  • Core width: 27.1870 in.
  • Core thickness: 1.0000 in.
  • Inlet diameter: 1.4370 in.
  • Outlet diameter: 1.4370 in.
  • No transmission oil cooler included

OE-Style Cooling Construction

The Denso 221-4505 radiator is engineered around OE manufacturer standards for configuration, tank design, fin pitch, core dimensions, and materials. That approach helps maintain proper engine cooling performance in the 2000-2002 Mazda 626, where radiator fit and thermal efficiency are critical to stable operation. This part cross-references Spectra Premium CU2408 and CSF 2609 for the same application.

Common Replacement Reasons

  • Leaking radiator tanks or seams
  • Restricted coolant flow from internal buildup
  • Overheating caused by reduced heat transfer
  • Damaged inlet or outlet connections
  • Cooling system service on a Mazda 626 radiator replacement

Installation Notes

Verify core dimensions, inlet and outlet size, and transmission cooler requirements before installation. This radiator is specified without a transmission oil cooler, so confirm the vehicle’s cooling system configuration matches the part before removal of the original unit. Inspect hoses, clamps, coolant condition, and fan operation during replacement to help restore proper system performance.

Quality Assurance

Denso states that its radiators are built to OE standards and undergo durability and function testing before release. That testing process supports consistent fitment and dependable cooling performance for the Denso 221-4505 in the listed Mazda 626 applications.

Related reading

This part fits 3 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2002Mazda626N/A—
2001Mazda626N/A—
2000Mazda626N/A—
Directly replaces or cross-references 10 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
APDI — 8012408CSF — 2609CSF — 2941DPI Performance Racing Products — 2408Mazda — KLR9-15-200AOSC — 2408Reach Cooling — 41-2408Spectra Premium — CU2408TYC Cooling - Archived — 2408Vista Pro — 432278