Denso 221-4501 Radiator

Brand Denso 221-4501
Core Height 18.0000
Core Thickness 1.0000
Core Width 27.1870
Inlet Diameter 1.2500
Outlet Diameter 1.5000
Transmission Oil Cooler Included YES
Fits Mazda · 1 vehicle

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

Durability tested. Passes strict function and durability testing for demanding conditions.

Cooling performance. Engineered to support proper engine cooling and function.

Cross-references APDI 8012768, CSF 3394 and DPI Performance Racing Products 2768 for the same application. See all 9.

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Denso Radiator for 2004 Mazda MPV

This Denso radiator, part number 221-4501, is built for the 2004 Mazda MPV without Tow Package. It is an OE-style cooling replacement engineered around core size, tank design, fin pitch, and materials that match original equipment standards for fit and thermal performance.

  • Core height: 18.0000
  • Core width: 27.1870
  • Core thickness: 1.0000
  • Transmission oil cooler included: yes
  • Inlet diameter: 1.2500
  • Outlet diameter: 1.5000
  • Fits 2004 Mazda MPV, N/A, without Tow Package

OE Cooling Performance

Denso radiators are supplied to OE car makers worldwide, and this radiator follows that same engineering approach for the Mazda MPV. The core dimensions and connection sizes are specified to support proper coolant flow and heat transfer, while the integrated transmission oil cooler adds a direct replacement option for vehicles equipped with that feature. If you are replacing a leaking, clogged, or damaged radiator on a 2004 Mazda MPV, part number 221-4501 provides a direct-fit cooling solution.

This part cross-references Spectra Premium CU2768 for the same application.

Common Problems This Radiator Can Address

  • Coolant leaks from a cracked or corroded radiator
  • Overheating caused by restricted coolant flow
  • Transmission fluid temperature concerns when the cooler circuit is part of the radiator
  • Reduced cooling efficiency from damaged fins or internal blockage
  • Fitment issues from an incorrect replacement radiator

Installation Notes and Tips

Verify that your 2004 Mazda MPV is without Tow Package before ordering. Confirm inlet and outlet hose sizes, inspect radiator mounts, and check the condition of hoses, clamps, and coolant before installation. Flush the cooling system if contamination or debris is present, and refill with the correct coolant mixture after installation.

Quality Assurance

Denso designs radiators using OE supplier experience and subjects them to durability and function testing to help ensure consistent fitment and dependable operation under demanding conditions. Part number 221-4501 is built to meet original-equipment standards for the 2004 Mazda MPV cooling system.

This part fits 1 vehicle
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2004MazdaMPVN/AFits models without Tow Package.
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
APDI — 8012768CSF — 3394DPI Performance Racing Products — 2768Mazda — AJ51-15-200BOSC — 2768Reach Cooling — 41-2768Spectra Premium — CU2768TYC Cooling - Archived — 2768Vista Pro — 438209