Denso 221-3708 Radiator
OE Quality 60-Day Returns
Denso

Denso 221-3708 Radiator

Brand Denso 221-3708
Core Height 22.8120
Core Thickness 0.6250
Core Width 16.1870
Transmission Oil Cooler Included Yes
Inlet Diameter 1.5000
Outlet Diameter 1.5000
Fits Kia · 2 vehicles

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

Radiator performance. Essential for proper engine cooling and function.

Transmission oil cooler included. Integrated cooling helps simplify the replacement.

Cross-references APDI 8013134, CSF 3494 and DPI Performance Racing Products 13134 for the same application. See all 9.

$159.97Free shipping
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Denso Radiator for Kia Soul

The Denso 221-3708 radiator is built for 2010-2011 Kia Soul applications and follows OE-style specifications for fitment and cooling performance. With a transmission oil cooler included, 1.5000-inch inlet and outlet diameters, and core dimensions sized for the application, this radiator supports dependable engine temperature control in daily driving conditions.

  • Fits 2010-2011 Kia Soul
  • Part number: 221-3708
  • Transmission oil cooler included
  • Core height: 22.8120 in.
  • Core width: 16.1870 in.
  • Core thickness: 0.6250 in.
  • Inlet diameter: 1.5000 in.
  • Outlet diameter: 1.5000 in.

OE-Style Cooling Construction

Denso supplies radiators to original equipment vehicle manufacturers, and this radiator reflects that OE-focused engineering approach. The core dimensions, tank configuration, fin pitch, and materials are built to meet rigid manufacturer standards, helping maintain proper coolant flow and heat transfer in the Kia Soul. If you are replacing a worn or leaking radiator on a 2010 Kia Soul or 2011 Kia Soul, Denso 221-3708 provides a direct-fit cooling solution for the listed application.

This part cross-references Kia 25310-2K150 for the same application.

Common Problems This Radiator Addresses

  • Coolant leaks from a damaged or corroded radiator
  • Engine overheating caused by reduced heat dissipation
  • Transmission temperature concerns when the cooler circuit is part of the failure
  • Restricted coolant flow from internal blockage or deterioration
  • Poor fitment from an incorrect replacement radiator

Installation Notes and Tips

Confirm the inlet and outlet sizes, core dimensions, and transmission cooler configuration before installation. Flush the cooling system, inspect hoses and clamps, and verify that the radiator mounts and connections match the vehicle before filling with the correct coolant. For 2010-2011 Kia Soul radiator replacement jobs, matching the OE-style layout helps reduce installation issues and supports proper system operation.

Quality Assurance

Denso radiators are manufactured with OE experience and undergo durability and function testing before release. That testing process helps ensure consistent performance, reliable fitment, and dependable cooling under demanding operating conditions.

Related reading

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionPositionNotes
2011KiaSoulAutomaticN/A—
2010KiaSoulAutomaticN/A—
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
APDI — 8013134CSF — 3494DPI Performance Racing Products — 13134Kia — 25310-2K150OSC — 13134Reach Cooling — 41-13134Spectra Premium — CU13134TYC Cooling - Archived — 13134Vista Pro — 438490