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OE Quality
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CSF 2991 Radiator
Overview of CSF 2991 Radiator for Mazda 6
The CSF 2991 radiator is designed specifically for the Mazda 6, providing reliable engine cooling with its durable construction. Featuring a 1 row plastic tank aluminum core, this radiator balances efficient heat dissipation with OEM-style materials for dependable performance.
- Core thickness: 11/16 inch
- Core width: 28 7/8 inches
- Core length: 14 7/8 inches
- Aluminum core with plastic tanks
- Down flow design for effective coolant circulation
- Inlet and outlet diameter: 1 1/4 inches, positioned on the left
- Single radiator core row
- Includes high-efficiency concentric oil cooler (13 3/4 inches)
- OEM style plastic tanks and aluminum core construction
Details on the 1 Row Plastic Tank Aluminum Core Product Line
The CSF 1 Row Plastic Tank Aluminum Core line combines lightweight plastic tanks with a robust aluminum core to provide a balance of durability and efficient cooling. This design is intended to meet OEM specifications, ensuring compatibility and reliable performance for vehicles like the Mazda 6. The single-row core thickness and down flow configuration optimize coolant flow and heat exchange within a compact form factor.
Technical Description of CSF Part Number 2991
This radiator features an 11/16 inch thick aluminum core measuring 28 7/8 inches wide and 14 7/8 inches long. The plastic tanks are engineered to OEM standards, contributing to a lightweight yet sturdy assembly. Both the inlet and outlet have a diameter of 1 1/4 inches and are located on the left side, supporting a down flow coolant path. The integrated high-efficiency concentric oil cooler (13 3/4 inches) enhances thermal management for the engine oil, improving overall vehicle cooling performance.
Common Applications and Problem Solving
- Replaces leaking or cracked radiators in Mazda 6 models
- Addresses overheating issues caused by inefficient cooling
- Restores proper coolant flow with OEM-style plastic tanks and aluminum core
- Improves engine oil cooling with built-in high-efficiency oil cooler
- Suitable for vehicles requiring a down flow radiator design
Installation Notes and Tips
When installing the CSF 2991 radiator, ensure the inlet and outlet connections align with the vehicle’s left-side hose fittings. Verify the radiator core dimensions fit within the engine bay without obstruction. Since the radiator does not include a cap, reuse the existing OEM cap or source a compatible replacement. Properly bleed the cooling system after installation to prevent air pockets and ensure optimal coolant circulation.
Quality Assurance and Warranty
CSF radiators are manufactured to meet OEM specifications, using high-quality aluminum cores and plastic tanks designed for durability and corrosion resistance. This radiator is free of hazardous materials and undergoes rigorous testing to ensure reliable performance. Warranty details should be confirmed with the distributor or manufacturer, as coverage may vary.
| Brand | CSF |
| Part Number | 2991 |
| Position | 1 Row Plastic Tank Aluminum Core |
| Box Height (in) | 7 |
| Box Length (in) | 32 |
| Box Weight (lbs) | 10 |
| Box Width (in) | 24 |
| Cap Included | No |
| Core Length | 14 7/8 |
| Core Material | Aluminum |
| Core Thickness | 11/16 |
| Core Width | 28 7/8 |
| Down Flow Or Cross Flow Type | Down Flow |
| Hazardous Material | No |
| Inlet Diameter | 1 1/4 Left |
| Inlet Length (in) | 29 1/2 |
| Inlet Width (in) | 1 9/16 |
| Oil Cooler (in) | 13 3/4 (high-effeciency Concentric Type) |
| Outlet Diameter | 1 1/4 Left |
| Outlet Length (in) | 29 1/2 |
| Outlet Width (in) | 1 9/16 |
| Radiator Core Row Quantity | 1 |
| Tank Material | Plastic |
| Tech Note | O.E.M style plastic tanks & Aluminum core. |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | Mazda | 6 | 2.3L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2007 | Mazda | 6 | 2.3L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2006 | Mazda | 6 | 2.3L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2005 | Mazda | 6 | 2.3L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2004 | Mazda | 6 | 2.3L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2003 | Mazda | 6 | 2.3L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
* 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.