Part #: 221-9446

Denso 221-9446 Radiator

⚙️ 10 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Kia and Hyundai, Optima and Sonata
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of the Denso Radiator 221-9446 for Hyundai and Kia

The Denso radiator part number 221-9446 is designed specifically for Hyundai Optima and Kia Sonata models. This radiator ensures efficient engine cooling with precise core dimensions and reliable inlet and outlet diameters, supporting optimal vehicle performance.

  • Core Height: 2.3125 inches
  • Core Thickness: 1.0000 inch
  • Core Width: 25.0625 inches
  • Inlet Diameter: 0.6875 inches
  • Outlet Diameter: 0.6875 inches
  • Transmission Oil Cooler: Not included

Detailed Radiator Specifications and Design

The Denso 221-9446 radiator features a core height of 2.3125 inches and a core thickness of 1 inch, providing a compact yet effective cooling surface. With a core width of 25.0625 inches, this radiator is engineered to fit the cooling system requirements of Hyundai Optima and Kia Sonata vehicles. Both the inlet and outlet diameters measure 0.6875 inches, ensuring compatibility with the existing coolant hoses and maintaining proper fluid flow. This radiator does not include a transmission oil cooler, focusing solely on engine coolant management.

Compatible Vehicles and Common Applications

This radiator is compatible with the following vehicles:

  • Hyundai Optima
  • Kia Sonata

It is designed to address common cooling system issues such as:

  • Overheating due to radiator core damage or clogging
  • Coolant leaks from worn or cracked radiator components
  • Reduced cooling efficiency from corrosion or buildup
  • Inadequate heat dissipation affecting engine performance

Installation Notes and Recommendations

When installing the Denso radiator 221-9446, ensure the following:

  • Verify compatibility with your Hyundai Optima or Kia Sonata model year and engine type
  • Inspect and replace any worn hoses or clamps to prevent leaks
  • Flush the cooling system to remove debris before installation
  • Use manufacturer-recommended coolant to maintain system integrity
  • Check for proper alignment of inlet and outlet connections

Quality Assurance and Warranty Information

Denso radiators are manufactured to meet OEM specifications, ensuring reliable performance and durability. The 221-9446 radiator undergoes rigorous quality control testing to maintain consistent cooling efficiency. 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.

This part fits 10 vehicles. Search below:

YearMakeModelFuel TypePositionNotes
2016KiaOptimaELECTRIC/GASN/AInverter Cooling
2015HyundaiSonataELECTRIC/GASN/AInverter Cooling
2015KiaOptimaELECTRIC/GASN/AInverter Cooling
2014HyundaiSonataELECTRIC/GASN/AInverter Cooling
2014KiaOptimaELECTRIC/GASN/AInverter Cooling
2013HyundaiSonataELECTRIC/GASN/AInverter Cooling
2013KiaOptimaELECTRIC/GASN/AInverter Cooling
2012HyundaiSonataELECTRIC/GASN/AInverter Cooling
2012KiaOptimaELECTRIC/GASN/AInverter Cooling
2011KiaOptimaELECTRIC/GASN/AInverter Cooling

* 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:

134688013468

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