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CSF 3391 Radiator
Overview of CSF 3391 Radiator for Subaru Forester
The CSF 3391 radiator is designed specifically for Subaru Forester models, providing reliable engine cooling with a durable aluminum core and plastic tanks. This radiator features a single-row core construction optimized for efficient heat dissipation in a down flow configuration.
- Core thickness: 5/8 inch
- Core width: 27 inches
- Core length: 14 3/16 inches
- Aluminum core material with plastic tanks
- Inlet diameter: 1 1/2 inch (right side)
- Outlet diameter: 1 9/16 inch (left side)
- Down flow radiator type
- One core row for streamlined cooling
- Cap not included (CSF cap number 4540 compatible)
- Box dimensions: 30 5/8" L x 21 15/16" W x 5 1/16" H
- Box weight: 10 lbs
Details on the 1 Row Plastic Tank Aluminum Core Product Line
The CSF 1 Row Plastic Tank Aluminum Core line combines OEM-style plastic tanks with a robust aluminum core to balance durability and weight. This product line is engineered to meet the cooling demands of vehicles like the Subaru Forester, offering a single-row core design that supports effective heat exchange while maintaining a compact form factor.
Product Description and Specifications
The CSF 3391 radiator features a 5/8 inch thick aluminum core measuring 27 inches wide and 14 3/16 inches long, designed for optimal cooling performance in Subaru Forester vehicles. The plastic tanks are engineered to OEM specifications, ensuring proper fit and function. The radiator uses a down flow design, which directs coolant downward through the core for efficient heat transfer. Inlet and outlet diameters are 1 1/2 inches (right) and 1 9/16 inches (left), respectively, matching factory hose connections. This radiator does not include a cap but is compatible with CSF cap number 4540. The unit weighs approximately 10 pounds and ships in a box sized 30 5/8 by 21 15/16 by 5 1/16 inches.
Common Applications and Problem Resolution
- Replacement for leaking or cracked Subaru Forester radiators
- Solves overheating issues caused by clogged or damaged cores
- Restores proper coolant flow with OEM-style inlet and outlet sizes
- Addresses radiator core corrosion or physical damage
- Improves cooling efficiency in Forester models with single-row radiator setups
Installation Notes and Tips
- Ensure compatibility with Subaru Forester model year before installation
- Use compatible CSF radiator cap number 4540 (not included)
- Inspect hoses and clamps for wear during installation
- Flush cooling system to remove debris before installing new radiator
- Follow vehicle manufacturer torque specifications for mounting hardware
Quality Assurance and Warranty Information
The CSF 3391 radiator is manufactured to meet OEM standards, combining a high-quality aluminum core with durable plastic tanks. This product is free of hazardous materials and designed for long-term reliability. Warranty details should be confirmed with the distributor or manufacturer, as they may vary by region.
| Brand | CSF |
| Part Number | 3391 |
| Position | 1 Row Plastic Tank Aluminum Core |
| Box Height (in) | 5 1/16 |
| Box Length (in) | 30 5/8 |
| Box Weight (lbs) | 10 |
| Box Width (in) | 21 15/16 |
| Cap Included | No |
| Core Length | 14 3/16 |
| Core Material | Aluminum |
| Core Thickness | 5/8 |
| Core Width | 27 |
| Csf Cap Number | 4540 |
| Down Flow Or Cross Flow Type | Down Flow |
| Hazardous Material | No |
| Inlet Diameter | 1 1/2 Right |
| Inlet Length (in) | 27 13/16 |
| Inlet Width (in) | 1 5/8 |
| Oil Cooler (in) | 14 3/4 (high-effeciency Concentric Type) |
| Outlet Diameter | 1 9/16 Left |
| Outlet Length (in) | 27 13/16 |
| Outlet Width (in) | 2 |
| Radiator Core Row Quantity | 1 |
| Tank Material | Plastic |
| Tech Note | O.E.M. style Plastic tanks & Aluminum core;Manufactured with steel crimp strips to strengthen Radiator by 40% over O.E. |
This part fits 3 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | Subaru | Forester | 2.5L | H4 | N/A | OE Style Design; Use Mini, 20 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 2007 | Subaru | Forester | 2.5L | H4 | N/A | OE Style Design; Use Mini, 20 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 2006 | Subaru | Forester | 2.5L | H4 | N/A | OE Style Design; Use Mini, 20 psi Cap; 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.