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Denso 221-3400 Radiator
| Brand | Denso 221-3400 |
|---|---|
| Core Height | 17.7500 |
| Core Thickness | 1.0000 |
| Core Width | 27.1870 |
| Inlet Diameter | 1.3750 |
| Outlet Diameter | 1.3750 |
| Transmission Oil Cooler Included | YES |
| Fits | Nissan · 12 vehicles |
OE experience. Built to OE standards for reliable performance and fit.
Transmission oil cooler included. Integrated cooling support in one radiator assembly.
Essential for proper engine cooling and function.
Cross-references APDI 8012215, CSF 3095 and Datsun/Nissan 21460-3S600 for the same application. See all 10.
Denso 221-3400 Radiator for Nissan Frontier and Xterra
The Denso 221-3400 radiator is built for direct-fit cooling performance in select Nissan trucks and SUVs. It combines OE-style dimensions with an integrated transmission oil cooler to support stable engine temperatures and dependable drivability.
Key Features
- Core height: 17.7500 in.
- Core width: 27.1870 in.
- Core thickness: 1.0000 in.
- Inlet diameter: 1.3750 in.
- Outlet diameter: 1.3750 in.
- Transmission oil cooler included
- OE-style radiator configuration for proper fitment
Detailed Description
Denso 221-3400 is a radiator engineered to match OE specifications for cooling capacity, tank design, fin pitch, core dimensions, and material selection. Denso supplies radiators to vehicle manufacturers worldwide, and this OE-focused approach helps ensure consistent fitment and reliable heat transfer for daily driving and demanding conditions. This radiator is compatible with 1998-2004 Nissan Frontier and 2000-2004 Nissan Xterra, making it a direct replacement choice for owners searching for a Nissan Frontier radiator or Nissan Xterra radiator by part number 221-3400.
This part cross-references Spectra Premium CU2215 for the same application.
Common Problems This Radiator Can Address
- Engine overheating from a restricted or leaking radiator
- Coolant loss caused by cracked tanks or damaged core passages
- Transmission temperature concerns when the cooler circuit is part of the failure
- Reduced cooling efficiency from aged fins or internal blockage
- Fitment issues from non-OE replacement dimensions
Installation Notes and Tips
Verify inlet and outlet hose diameters before installation and confirm the transmission cooler connections match the vehicle setup. Flush the cooling system, inspect hoses and clamps, and replace worn coolant components before installing the new radiator. After installation, refill with the correct coolant mixture, bleed air from the system, and check for leaks at all hose and cooler connections.
Quality Assurance
Denso radiators are built to OE standards and undergo durability and function testing before release. The 221-3400 reflects Denso’s OE supplier experience, with attention to fitment, cooling performance, and long-term reliability.
| Year | Make | Model | Transmission | Position | Notes |
|---|---|---|---|---|---|
| 2004 | Nissan | Frontier | Automatic | N/A | — |
| 2004 | Nissan | Xterra | Automatic | N/A | — |
| 2003 | Nissan | Frontier | Automatic | N/A | — |
| 2003 | Nissan | Xterra | Automatic | N/A | — |
| 2002 | Nissan | Frontier | Automatic | N/A | — |
| 2002 | Nissan | Xterra | Automatic | N/A | — |
| 2001 | Nissan | Frontier | Automatic | N/A | — |
| 2001 | Nissan | Xterra | Automatic | N/A | — |
| 2000 | Nissan | Frontier | Automatic | N/A | — |
| 2000 | Nissan | Xterra | Automatic | N/A | — |
| 1999 | Nissan | Frontier | Automatic | N/A | — |
| 1998 | Nissan | Frontier | Automatic | N/A | — |
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