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Denso 221-4404 Radiator
| Brand | Denso 221-4404 |
|---|---|
| Core Height | 15.7500 |
| Core Thickness | 0.6250 |
| Core Width | 29.0000 |
| Inlet Diameter | 1.4370 |
| Outlet Diameter | 1.4370 |
| Transmission Oil Cooler Included | YES |
| Fits | Nissan · 4 vehicles |
OE experience. Built to meet strict OE standards for fit, performance, and reliability.
Durability tested. Passes rigorous function testing for dependable cooling under demanding conditions.
Transmission oil cooler included. Adds integrated cooling support in one radiator assembly.
Cross-references APDI 8012576, CSF 2997 and Datsun/Nissan 21460-CD010 for the same application. See all 9.
Denso 221-4404 Radiator for Nissan 350Z
The Denso 221-4404 radiator is built for 2003-2006 Nissan 350Z applications and follows OE-style dimensions for proper cooling system fitment. With an included transmission oil cooler and matched inlet and outlet sizing, it supports dependable engine temperature control in demanding driving conditions.
Key Features
- Fits 2003-2006 Nissan 350Z, N/A
- Core dimensions: 15.7500 in. height, 29.0000 in. width, and 0.6250 in. thickness
- Inlet diameter: 1.4370 in.
- Outlet diameter: 1.4370 in.
- Transmission oil cooler included
- OE-focused radiator construction from Denso
Detailed Description
Denso radiator Part Number 221-4404 is engineered for the 2003-2006 Nissan 350Z with attention to core size, tank configuration, fin pitch, and material selection. Denso supplies radiators to vehicle manufacturers worldwide, and this radiator reflects that OE development background with dimensions and construction details that align with factory requirements. The result is a direct-fit cooling component for Nissan 350Z owners replacing a worn or leaking radiator.
This radiator cross-references APDI 8012576 for the same application.
Common Problems This Radiator Can Address
- Coolant leaks from a cracked or corroded radiator
- Overheating caused by reduced heat transfer efficiency
- Transmission fluid temperature concerns when the radiator cooler circuit is failing
- Fitment issues from an incorrect replacement radiator
- Cooling system performance loss due to aging internal passages or damaged tanks
Installation Notes and Tips
Verify inlet and outlet hose sizing before installation and inspect related cooling system components, including hoses, clamps, and the thermostat, while the system is open. Flush the cooling system as needed and refill with the correct coolant mixture after installation. Confirm that the transmission cooler connections are properly routed if your vehicle uses the integrated cooler circuit.
Quality Assurance
Denso builds this radiator to OE standards and subjects its radiators to durability and function testing before release. That manufacturing approach helps ensure consistent fitment and reliable cooling performance for Nissan 350Z models from 2003 through 2006.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2006 | Nissan | 350Z | N/A | — |
| 2005 | Nissan | 350Z | N/A | — |
| 2004 | Nissan | 350Z | N/A | — |
| 2003 | Nissan | 350Z | N/A | — |
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