Denso 221-9242 Radiator

Brand Denso 221-9242
Core Height 23.6200
Core Thickness 0.8700
Core Width 03.0200
Inlet Diameter 0.6880
Outlet Diameter 0.6900
Transmission Oil Cooler Included NO
Fits Toyota · 6 vehicles

OE experience. Built to meet strict OE standards for fit, performance, and reliability.

Radiator function. Helps maintain proper engine cooling for dependable operation.

Durability tested. Passed rigorous testing for reliable performance under demanding conditions.

Cross-references APDI 8013124, CSF 3774 and DPI Performance Racing Products 13124 for the same application. See all 9.

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Denso 221-9242 Radiator for Toyota Prius

The Denso 221-9242 radiator is built for inverter cooling applications on select Toyota Prius models. It uses OE-style dimensions and materials to support proper heat transfer, fitment, and dependable cooling performance.

Key Features

  • Core height: 23.6200
  • Core width: 03.0200
  • Core thickness: 0.8700
  • Inlet diameter: 0.6880
  • Outlet diameter: 0.6900
  • No transmission oil cooler included
  • OE-focused radiator construction from Denso

Product Details

Denso Part Number 221-9242 is a radiator engineered for inverter cooling on the Toyota Prius. Denso supplies radiators to original equipment manufacturers worldwide, and this unit follows OE-level standards for configuration, tank design, fin pitch, core dimensions, and material selection. That attention to detail helps maintain stable cooling performance in demanding driving conditions. If you are replacing a Toyota Prius inverter cooler radiator, 221-9242 provides a direct-fit solution for the listed applications.

This part cross-references Spectra Premium CU13124 for the same application.

What This Radiator Helps Address

  • Overheating concerns in the inverter cooling circuit
  • Loss of cooling efficiency from a damaged or restricted radiator
  • Leaks caused by age, corrosion, or impact damage
  • Fitment issues when replacing an OE-style Toyota Prius inverter cooler
  • Cooling system performance problems tied to worn radiator components

Installation Notes

Compatible With 2015 Toyota Prius, inverter cooling. Compatible With 2010-2014 Toyota Prius, inverter cooler. Verify inlet and outlet sizing, core dimensions, and vehicle configuration before installation. Flush the cooling system as needed and inspect hoses, clamps, and surrounding components for wear before installing the new radiator.

Quality Assurance

Denso radiators are built to meet OE manufacturer standards and undergo durability and function testing before release. That OE-based engineering helps support reliable cooling performance and consistent fitment for Toyota Prius applications.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2015ToyotaPriusN/AInverter Cooling
2014ToyotaPriusN/AInverter Cooler - Fits various models and years, please verify compatibility with your vehicle.
2013ToyotaPriusN/AInverter Cooler - Fits various models and years, please verify compatibility with your vehicle.
2012ToyotaPriusN/AInverter Cooler - Fits various models and years, please verify compatibility with your vehicle.
2011ToyotaPriusN/AInverter Cooler - Fits various models and years, please verify compatibility with your vehicle.
2010ToyotaPriusN/AInverter Cooler - Fits various models and years, please verify compatibility with your vehicle.
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
APDI — 8013124CSF — 3774DPI Performance Racing Products — 13124OSC — 13124Reach Cooling — 41-13124Spectra Premium — CU13124Toyota — G9010-47030Toyota — G9010-47031TYC Cooling - Archived — 13124