Denso 221-9618 Radiator
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Denso
 Radiator

Denso 221-9618 Radiator

Brand Denso 221-9618
Core Height 17.7170
Core Thickness 1.0240
Core Width 29.4090
Transmission Oil Cooler Included No
Inlet Diameter 1.3390
Outlet Diameter 1.3390
Product line Radiator
Fits Toyota · 4 vehicles

OE experience. Built to OE standards for reliable performance and fit.

Radiator function. Helps maintain proper engine cooling and operation.

Durability tested. Passes strict function and durability checks.

Cross-references Carlson 13663, CSF 3823 and Global Parts Distributors LLC 13663C for the same application. See all 9.

$221.95Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $221.95
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
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Denso Radiator for Toyota Sienna

The Denso 221-9618 radiator is an OE-style cooling system replacement built for 2017-2020 Toyota Sienna applications. It is engineered around factory-style dimensions and materials to support consistent engine temperature control and dependable fitment.

Key Features

  • Core height: 17.7170
  • Core width: 29.4090
  • Core thickness: 1.0240
  • Inlet diameter: 1.3390
  • Outlet diameter: 1.3390
  • No transmission oil cooler included
  • Built to OE manufacturer standards for configuration, tank design, fin pitch, and core dimensions

Product Details

Denso radiators are supplied with OE manufacturing experience and are tested for durability and function before release. The 221-9618 radiator follows the dimensional and material requirements expected for direct replacement service, making it a practical choice for Toyota Sienna cooling system repair. If you are searching for a radiator for 2017-2020 Toyota Sienna, this part number is a direct reference point for the correct application.

This part cross-references CSF 3823 for the same application.

Common Problems This Part Can Address

  • Engine overheating caused by a leaking or restricted radiator
  • Coolant loss from cracked tanks or damaged core passages
  • Poor heat transfer from a clogged or corroded radiator
  • Cooling system service needs on a 2017-2020 Toyota Sienna
  • Fitment replacement when the original radiator no longer holds pressure

Installation Notes

Verify inlet and outlet sizes, core dimensions, and vehicle fitment before installation. This radiator does not include a transmission oil cooler. For best results, inspect hoses, clamps, coolant condition, and related cooling components during replacement on Toyota Sienna models.

Quality Assurance

Denso supplies radiators to OE car makers worldwide, and this radiator is built to meet rigid OE standards for fit, performance, and durability. The 221-9618 is tested for function and endurance to support reliable cooling under demanding driving conditions.

Related reading

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelNotes
2020ToyotaSiennaOE; Radiator
2019ToyotaSiennaOE; Radiator
2018ToyotaSiennaOE; Radiator
2017ToyotaSiennaOE; Radiator
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Carlson — 13663CSF — 3823Global Parts Distributors LLC — 13663CSpectra Premium — CU1366341-13663160410P280164000P37022196188013663