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OE Quality
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CSF 3804 Radiator
Overview of CSF Radiator Part Number 3804 for Mazda 6
The CSF radiator 3804 is designed specifically for the Mazda 6, providing reliable engine cooling with an OEM-style construction. Featuring an aluminum core and plastic tanks, this radiator supports efficient heat dissipation and durability for your vehicle's cooling system.
- Core thickness: 5/8 inch
- Core width: 28 11/16 inches
- Core length: 14 13/16 inches
- Aluminum core material with plastic tanks
- Down flow radiator type
- Inlet diameter: 1 5/16 inches (left side)
- Outlet diameter: 1 5/16 inches (center)
- Single core row design
- Cap not included (CSF cap number 4503 compatible)
Detailed Product Description
This CSF radiator 3804 is engineered with a 5/8 inch thick aluminum core that measures 28 11/16 inches wide and 14 13/16 inches long, ensuring optimal cooling capacity for the Mazda 6. The plastic tanks are designed to match OEM specifications, providing a balance of lightweight construction and durability. The down flow design facilitates efficient coolant flow from the inlet on the left side to the outlet in the center, both with a diameter of 1 5/16 inches. This radiator features a single core row, which is suitable for standard cooling requirements of the Mazda 6 engine.
Common Applications and Issues Addressed
- Replacement for leaking or cracked radiator tanks
- Resolution of overheating issues due to clogged or damaged cores
- Upgrade for worn or corroded OEM radiators
- Restoration of proper coolant flow in Mazda 6 cooling systems
- Fixing coolant leaks from damaged inlet or outlet connections
Installation Notes and Tips
When installing the CSF radiator 3804 on a Mazda 6, ensure the radiator cap is compatible (CSF cap number 4503 recommended). Verify all hose connections match the 1 5/16 inch inlet and outlet diameters for a secure fit. Properly bleed the cooling system after installation to avoid air pockets. Inspect mounting points and hardware for wear and replace as necessary to maintain radiator stability.
Quality Assurance and Warranty
CSF radiators are manufactured to meet OEM standards, using high-quality aluminum cores and plastic tanks for durability and performance. This radiator is free of hazardous materials and designed for long-term reliability. Warranty information should be confirmed with the distributor or manufacturer, as it may vary by region.
| Brand | CSF |
| Part Number | 3804 |
| Box Height (in) | 6 7/16 |
| Box Length (in) | 31 5/8 |
| Box Weight (lbs) | 9 |
| Box Width (in) | 22 3/16 |
| Cap Included | No |
| Core Length | 14 13/16 |
| Core Material | Aluminum |
| Core Thickness | 5/8 |
| Core Width | 28 11/16 |
| Csf Cap Number | 4503 |
| Down Flow Or Cross Flow Type | Down Flow |
| Hazardous Material | No |
| Inlet Diameter | 1 5/16 Left |
| Inlet Length (in) | 29 1/2 |
| Inlet Width (in) | 1 5/8 |
| Outlet Diameter | 1 5/16 Centre |
| Outlet Length (in) | 29 1/2 |
| Outlet Width (in) | 1 5/8 |
| Radiator Core Row Quantity | 1 |
| Tank Material | Plastic |
| Tech Note | O.E.M. style Plastic tanks & Aluminum core. |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2021 | Mazda | 6 | 2.5L | L4 | N/A | |
| 2020 | Mazda | 6 | 2.5L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2019 | Mazda | 6 | 2.5L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2018 | Mazda | 6 | 2.5L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2017 | Mazda | 6 | 2.5L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2016 | Mazda | 6 | 2.5L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2015 | Mazda | 6 | 2.5L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2014 | Mazda | 6 | 2.5L | L4 | N/A | OE style design ensures optimal fitment and performance. |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.