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Denso 221-3508 Radiator
| Brand | Denso 221-3508 |
|---|---|
| Core Height | 26.4370 |
| Core Thickness | 0.6250 |
| Core Width | 14.5000 |
| Inlet Diameter | 0.9370 |
| Outlet Diameter | 0.9370 |
| Transmission Oil Cooler Included | NO |
| Fits | Mazda · 7 vehicles |
OE experience. Built to meet strict OE standards for fit, performance, and reliability.
Durability tested. Passes rigorous function and durability testing for dependable cooling.
Radiator performance. Helps maintain proper engine cooling and function.
Cross-references APDI 8013100, CSF 3496 and DPI Performance Racing Products 13100 for the same application. See all 8.
Denso 221-3508 Radiator for Mazda 3
The Denso 221-3508 radiator is built for direct-fit cooling system service on select Mazda 3 applications. It uses OE-style dimensions and materials to support consistent engine temperature control, with fitment for 2010-2013 Mazda 3 and 2012 Mazda 3 non-SKYACTIV models.
Key Features
- Core height: 26.4370 in.
- Core width: 14.5000 in.
- Core thickness: 0.6250 in.
- Inlet diameter: 0.9370 in.
- Outlet diameter: 0.9370 in.
- No transmission oil cooler included
- OE-focused radiator configuration for Mazda 3 cooling system service
Detailed Description
Denso radiator part number 221-3508 is engineered to match OE requirements for radiator configuration, tank design, fin pitch, core dimensions, and material selection. As a radiator for the Mazda 3, it is intended to restore proper coolant flow and heat rejection when the original unit is worn, leaking, or no longer maintaining stable operating temperatures. Denso’s OE supply experience is reflected in the fitment and construction standards used for this radiator.
This part cross-references Spectra Premium CU13100 for the same application.
What It Helps Fix
- Coolant leaks from a damaged or corroded radiator
- Engine overheating caused by reduced heat transfer
- Temperature fluctuation from restricted radiator flow
- Cooling system performance loss in daily driving or stop-and-go traffic
- Fitment issues when replacing the original Mazda 3 radiator
Installation Notes and Tips
Verify inlet and outlet hose sizes before installation. Confirm that the vehicle is a 2010-2013 Mazda 3 or a 2012 Mazda 3 non-SKYACTIV application, and compare the original radiator dimensions to the listed core height, width, and thickness. Flush the cooling system, inspect hoses and clamps, and refill with the correct coolant mixture after installation.
Quality Assurance
Denso states that its radiators are built to OE standards and undergo durability and function testing before release. That testing process is used to support reliable cooling performance and proper fitment in demanding operating conditions.
| Year | Make | Model | Submodel | Transmission | Position | Notes |
|---|---|---|---|---|---|---|
| 2013 | Mazda | 3 | — | — | N/A | — |
| 2013 | Mazda | 3 | Mazdaspeed | — | N/A | — |
| 2012 | Mazda | 3 | — | — | N/A | — |
| 2012 | Mazda | 3 | Mazdaspeed | — | N/A | — |
| 2012 | Mazda | 3 | i | Automatic | N/A | non-SKYACTIV |
| 2011 | Mazda | 3 | — | — | N/A | — |
| 2010 | Mazda | 3 | — | — | N/A | — |
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