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Denso 221-3504 Radiator
| Brand | Denso 221-3504 |
|---|---|
| Core Height | 12.8120 |
| Core Thickness | 0.6250 |
| Core Width | 27.0620 |
| Inlet Diameter | 1.1250 |
| Outlet Diameter | 1.1250 |
| Transmission Oil Cooler Included | YES |
| Fits | Mazda · 2 vehicles |
OE experience. Built to meet strict OE standards for fit, performance, and reliability.
Transmission oil cooler included. Adds integrated cooling support in one radiator assembly.
Engine cooling function. Helps maintain proper cooling for dependable operation.
Cross-references APDI 8012447, CSF 2812 and DPI Performance Racing Products 2303 for the same application. See all 12.
Denso 221-3504 Radiator for Mazda Protege
The Denso 221-3504 radiator is built for 1999-2000 Mazda Protege applications and follows OE-style specifications for fitment and cooling performance. With integrated transmission oil cooler provisions and core dimensions matched to the application, this radiator supports stable engine temperature control in daily driving and demanding conditions.
Key Features
- Fits 1999-2000 Mazda Protege
- Part number 221-3504 for direct catalog lookup
- Transmission oil cooler included
- Core height: 12.8120 in.
- Core width: 27.0620 in.
- Core thickness: 0.6250 in.
- Inlet diameter: 1.1250 in.
- Outlet diameter: 1.1250 in.
Detailed Description
Denso radiators are engineered to meet OE manufacturer standards for configuration, tank design, fin pitch, core dimensions, and material selection. The 221-3504 radiator is specified for Mazda Protege cooling-system service and is built to support proper heat transfer, coolant flow, and transmission fluid cooling where equipped. If you are replacing a worn or leaking radiator on a 1999-2000 Mazda Protege, this unit provides the dimensions and connections needed for a straightforward replacement.
This part cross-references Spectra Premium (e.g., CU2303) and CSF (e.g., 2812) for the same application.
What This Radiator Helps Address
- Coolant leaks from a damaged or corroded radiator
- Overheating caused by restricted heat exchange
- Transmission cooling concerns when the factory cooler circuit is used
- Reduced cooling efficiency from aging core fins or tanks
- Fitment issues when replacing the original Mazda Protege radiator
Installation Notes and Tips
Verify inlet and outlet hose sizes before installation and confirm the radiator matches the vehicle’s transmission-cooler setup. Flush the cooling system, inspect hoses and clamps, and replace degraded coolant before putting the vehicle back into service. For 1999-2000 Mazda Protege radiator replacement, confirm mounting points and line routing against the original unit before final assembly.
Quality Assurance
Denso supplies radiators to OE car makers worldwide, and this radiator is built to the brand’s OE-focused standards for fitment, durability, and function. Each unit is tested for durability and operational performance before release.
| Year | Make | Model | Transmission | Position | Notes |
|---|---|---|---|---|---|
| 2000 | Mazda | Protege | Automatic | N/A | — |
| 1999 | Mazda | Protege | Automatic | N/A | — |
| No rows match your filter. | |||||