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Denso 221-3409 Radiator
| Brand | Denso 221-3409 |
|---|---|
| Core Height | 23.6250 |
| Core Thickness | 1.4370 |
| Core Width | 27.0620 |
| Inlet Diameter | 1.3750 |
| Outlet Diameter | 1.3750 |
| Transmission Oil Cooler Included | YES |
| Fits | Nissan · 15 vehicles |
OE experience. Built to meet strict OE standards for fit, function, and durability.
Radiator performance. Helps maintain proper engine cooling and dependable operation.
Transmission oil cooler included. Adds integrated cooling support in one radiator assembly.
Cross-references APDI 8012807, CSF 3196 and Datsun/Nissan 21460-EA215 for the same application. See all 9.
Denso Radiator for Nissan Frontier, Pathfinder, Xterra
Restore proper engine cooling with this Denso radiator, part number 221-3409. Built to OE specifications for fitment and thermal performance, it is a direct replacement for select 2005-2009 Nissan Frontier, Pathfinder, and Xterra applications.
- Core height: 23.6250 in.
- Core width: 27.0620 in.
- Core thickness: 1.4370 in.
- Inlet diameter: 1.3750 in.
- Outlet diameter: 1.3750 in.
- Transmission oil cooler included: yes
OE-Style Cooling Construction
Denso part number 221-3409 is engineered around OE radiator dimensions, tank design, fin pitch, and core materials to support consistent heat transfer and reliable fitment. As an OE supplier to vehicle manufacturers, Denso applies production-level standards and durability testing to help maintain stable coolant temperatures in demanding driving conditions. This radiator is a direct-fit choice for Nissan Frontier, Pathfinder, and Xterra models that require the listed dimensions and integrated transmission oil cooler.
This part cross-references Spectra Premium CU2807 and CSF 3196 for the same application.
What This Radiator Helps Address
- Overheating caused by a leaking or restricted radiator
- Coolant loss from cracked tanks or worn core seams
- Temperature instability during stop-and-go driving or towing
- Transmission cooling concerns when the factory cooler is part of the assembly
- Fitment issues when replacing an aging OE-style Nissan Frontier radiator
Installation Notes and Fitment
Fits 2005-2009 Nissan Frontier, N/A. Fits 2005-2009 Nissan Pathfinder, N/A. Fits 2005-2009 Nissan Xterra, N/A. Verify inlet and outlet size, core dimensions, and transmission cooler connections before installation. Flush the cooling system, inspect hoses and clamps, and refill with the correct coolant mixture after the radiator is installed. Part number 221-3409 is intended for direct replacement use on the listed Nissan applications.
Quality Assurance
Denso radiators are built to OE standards and undergo durability and function testing before release. That manufacturing approach helps ensure dependable cooling performance, accurate fitment, and consistent operation for the listed Nissan applications.
| Year | Make | Model | Transmission | Position | Notes |
|---|---|---|---|---|---|
| 2009 | Nissan | Frontier | Automatic | N/A | — |
| 2009 | Nissan | Pathfinder | — | N/A | — |
| 2009 | Nissan | Xterra | Automatic | N/A | — |
| 2008 | Nissan | Frontier | Automatic | N/A | — |
| 2008 | Nissan | Pathfinder | — | N/A | — |
| 2008 | Nissan | Xterra | Automatic | N/A | — |
| 2007 | Nissan | Frontier | Automatic | N/A | — |
| 2007 | Nissan | Pathfinder | — | N/A | — |
| 2007 | Nissan | Xterra | Automatic | N/A | — |
| 2006 | Nissan | Frontier | Automatic | N/A | — |
| 2006 | Nissan | Pathfinder | — | N/A | — |
| 2006 | Nissan | Xterra | Automatic | N/A | — |
| 2005 | Nissan | Frontier | Automatic | N/A | — |
| 2005 | Nissan | Pathfinder | — | N/A | — |
| 2005 | Nissan | Xterra | Automatic | N/A | — |
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