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CSF 3941 Radiator
| Brand | CSF 3941 |
|---|---|
| Core Thickness | 7/8 |
| Core Width | 28 11/16 |
| Core Material | Aluminum |
| Tank Material | Plastic |
| Core Length | 16 5/8 |
| Inlet Diameter | 1 5/16 left |
| Outlet Diameter | 1 5/16 center |
| Down Flow Or Cross Flow Type | Down flow |
| Box Height (in) | 5 7/8 |
| Box Length (in) | 31 1/4 |
| Box Weight (lbs) | 10 |
| Box Width (in) | 22 15/16 |
| Hazardous Material | No |
| Inlet Length (in) | 29 1/2 |
| Inlet Width (in) | 1 5/8 |
| No. Of Rows | 1 |
| Oil Cooler (in) | No |
| Outlet Length (in) | 29 1/2 |
| Outlet Width (in) | 1 5/8 |
| Radiator Cap Supplied | No |
| Tech Note | O.e.m. style plastic tank & aluminum core. |
| Fits | Mazda · 7 vehicles |
OE-style design. Plastic tank and aluminum core construction matches the original layout.
Wind tunnel tested. Engineered to validate cooling performance in lab conditions.
ISO/TSO certified. Built in certified factories and sold worldwide for decades.
Cross-references BBB Industries 13872, MA3010249 and PX35-15-200 for the same application. See all 3.
CSF 3941 Radiator for Mazda CX-5
The CSF 3941 is an OE-style radiator built with an aluminum core and plastic tanks for the 2019-2025 Mazda CX-5. It is engineered for direct cooling-system replacement and follows a down-flow design with factory-style inlet and outlet sizing.
Key Features
- Fits 2019-2025 Mazda CX-5
- CSF part number 3941
- Aluminum core with plastic tank construction
- Down-flow radiator design
- Single-row core design
- Inlet diameter: 1 5/16 left
- Outlet diameter: 1 5/16 center
- Core thickness: 7/8 in.
- OE-style plastic tank and aluminum core layout
Detailed Description
Built for the Mazda CX-5 cooling system, CSF 3941 uses an aluminum core paired with plastic tanks to match common factory radiator construction. The core measures 28 11/16 in. wide by 16 5/8 in. long, with a 7/8 in. thickness and a single-row layout. This radiator is configured as a down-flow unit and uses a 1 5/16 in. left inlet and 1 5/16 in. center outlet for OE-style fitment. CSF manufactures radiators to controlled performance standards and validates cooling performance through lab testing, supporting consistent thermal management in daily driving conditions. If you are replacing a worn or leaking radiator on a Mazda CX-5, CSF 3941 provides a direct-fit cooling-system solution. This part number 3941 is also referenced for the same application in cross-reference listings.
Common Problems This Radiator Can Address
- Coolant leaks from a cracked or aging radiator tank
- Overheating caused by restricted or inefficient heat transfer
- Cooling-system loss from corrosion or core deterioration
- Temperature instability from a failing factory-style radiator
- Replacement needs after impact damage to the front cooling stack
Installation Notes and Tips
Verify inlet and outlet orientation, core dimensions, and mounting layout before installation. Inspect hoses, clamps, and the radiator cap condition during replacement, and flush the cooling system if contamination or debris is present. This radiator does not include a radiator cap. Confirm the vehicle is a 2019-2025 Mazda CX-5 before ordering CSF 3941.
Quality Assurance
CSF radiators are manufactured in ISO/TSO-certified facilities and built to performance-focused standards. The brand has supplied radiators worldwide for decades and uses engineering validation to support cooling performance consistency.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2025 | Mazda | CX-5 | 2.5L | L4 | N/A | — |
| 2024 | Mazda | CX-5 | 2.5L | L4 | N/A | — |
| 2023 | Mazda | CX-5 | 2.5L | L4 | N/A | — |
| 2022 | Mazda | CX-5 | 2.5L | L4 | N/A | — |
| 2021 | Mazda | CX-5 | 2.5L | L4 | N/A | — |
| 2020 | Mazda | CX-5 | 2.5L | L4 | N/A | — |
| 2019 | Mazda | CX-5 | 2.5L | L4 | N/A | — |
| No rows match your filter. | ||||||