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Denso 221-3403 Radiator
| Brand | Denso 221-3403 |
|---|---|
| Core Height | 15.7500 |
| Core Thickness | 0.6250 |
| Core Width | 28.6870 |
| Inlet Diameter | 1.3750 |
| Outlet Diameter | 1.3750 |
| Transmission Oil Cooler Included | YES |
| Fits | Nissan · 5 vehicles |
OE experience. Built to meet rigid OE standards for reliable fit and performance.
Radiator performance. Helps maintain proper engine cooling and function.
Durability tested. Passed strict function and durability testing for demanding conditions.
Cross-references APDI 8012414, CSF 2944 and Datsun/Nissan 21460-8J000 for the same application. See all 9.
Denso 221-3403 Radiator for Nissan Altima
The Denso 221-3403 radiator is built for 2002-2006 Nissan Altima applications and follows OE-style specifications for fitment and cooling performance. With a transmission oil cooler included and core dimensions matched to the application, this radiator supports dependable engine temperature control in daily driving conditions.
Key Features
- Fits 2002-2006 Nissan Altima
- Part number: 221-3403
- Core height: 15.7500 in.
- Core width: 28.6870 in.
- Core thickness: 0.6250 in.
- Inlet diameter: 1.3750 in.
- Outlet diameter: 1.3750 in.
- Transmission oil cooler included
- OE-based radiator configuration for proper fitment
Detailed Description
Denso radiators are supplied to OE car makers worldwide, and this 221-3403 radiator reflects that manufacturing experience with dimensions, tank design, fin pitch, core size, and materials selected to meet rigid OE standards. For Nissan Altima cooling system service, the radiator is engineered to support stable coolant flow and consistent heat exchange while matching the vehicle’s original layout.
This part cross-references Spectra Premium CU2414 and CSF 2944 for the same application. If you are replacing a worn or leaking radiator on a 2002-2006 Nissan Altima, Denso 221-3403 provides a direct-fit cooling system replacement built around the original vehicle requirements.
What It Helps Solve
- Engine overheating caused by a failing radiator
- Coolant leaks from cracked or corroded radiator components
- Transmission fluid temperature issues when the cooler circuit is part of the radiator
- Restricted heat transfer from damaged or clogged radiator cores
- Fitment problems from non-OE-style replacement parts
Installation Notes and Tips
Before installation, verify inlet and outlet hose sizes, mounting points, and transmission cooler line routing against the original radiator. Flush the cooling system, inspect hoses and clamps, and confirm the cooling fan and thermostat are operating correctly so the new radiator can perform as intended in your Nissan Altima.
Quality Assurance
Denso subjects its radiators to strict durability and function testing before release. The brand’s OE supply background and application-specific engineering help ensure reliable performance, fitment, and cooling function for the 2002-2006 Nissan Altima.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2006 | Nissan | Altima | N/A | — |
| 2005 | Nissan | Altima | N/A | — |
| 2004 | Nissan | Altima | N/A | — |
| 2003 | Nissan | Altima | N/A | — |
| 2002 | Nissan | Altima | N/A | — |
| No rows match your filter. | ||||