OE Quality
60-Day Returns

CSF 3696 Radiator
Overview of CSF 3696 Radiator for Subaru Forester
The CSF 3696 radiator is designed specifically for Subaru Forester models, featuring a durable aluminum core paired with OE-style plastic tanks. This radiator ensures efficient cooling performance with a down flow design and precise fitment for reliable vehicle operation.
- Core Thickness: 7/8 inch
- Core Width: 27 inches
- Core Length: 13 7/16 inches
- Aluminum core with plastic tanks
- Down flow radiator type
- Inlet and outlet diameter: 1 9/16 inches (left side)
- Single core row design
- Cap not included (CSF cap number 4540 compatible)
Details on the 1 Row Plastic Tank Aluminum Core Product Line
The CSF 1 Row Plastic Tank Aluminum Core product line combines lightweight aluminum cores with OE-style plastic tanks to provide a balance of durability and cost-effectiveness. This line is engineered to meet original equipment specifications, making it suitable for direct replacement applications such as the Subaru Forester radiator part number 3696.
Technical Description and Specifications
This radiator features a 7/8 inch thick aluminum core measuring 27 inches wide and 13 7/16 inches long, optimized for heat dissipation in Subaru Forester vehicles. The down flow design facilitates efficient coolant movement through the single core row, while the plastic tanks reduce weight without compromising structural integrity. Both the inlet and outlet have a diameter of 1 9/16 inches located on the left side, ensuring compatibility with the Forester's cooling system. The radiator does not include a cap but is compatible with CSF cap number 4540.
Common Applications and Problem Solving
- Replacement for leaking or damaged Subaru Forester radiators
- Resolving overheating issues due to core blockages or corrosion
- Addressing coolant leaks from cracked plastic tanks
- Upgrading to an OEM-style radiator for consistent cooling performance
- Fixing radiator failures caused by physical damage or wear
Installation Notes and Tips
- Ensure compatibility with Subaru Forester models before installation
- Drain coolant completely before removing the old radiator
- Inspect hoses and clamps for wear and replace if necessary
- Use the recommended CSF radiator cap (part number 4540) if a cap replacement is needed
- Check for proper alignment of inlet and outlet connections during installation
Quality Assurance and Warranty Information
The CSF 3696 radiator is manufactured to meet OEM standards, featuring a robust aluminum core and plastic tanks designed for durability and reliable cooling. This radiator is free from hazardous materials and undergoes quality control to ensure fitment and performance. Warranty details should be confirmed with the distributor or manufacturer at the time of purchase.
| Brand | CSF |
| Part Number | 3696 |
| Position | 1 Row Plastic Tank Aluminum Core |
| Box Height (in) | 4 11/16 |
| Box Length (in) | 29 11/16 |
| Box Weight (lbs) | 9 |
| Box Width (in) | 20 9/16 |
| Cap Included | No |
| Core Length | 13 7/16 |
| Core Material | Aluminum |
| Core Thickness | 7/8 |
| Core Width | 27 |
| Csf Cap Number | 4540 |
| Down Flow Or Cross Flow Type | Down Flow |
| Hazardous Material | No |
| Inlet Diameter | 1 9/16 Left |
| Inlet Length (in) | 27 13/16 |
| Inlet Width (in) | 1 9/16 |
| Outlet Diameter | 1 9/16 Left |
| Outlet Length (in) | 27 13/16 |
| 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 10 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2018 | Subaru | Forester | 2.5L | H4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2018 | Subaru | Forester | 2.0L | H4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2017 | Subaru | Forester | 2.0L | H4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2017 | Subaru | Forester | 2.5L | H4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2016 | Subaru | Forester | 2.5L | H4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2016 | Subaru | Forester | 2.0L | H4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2015 | Subaru | Forester | 2.0L | H4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2015 | Subaru | Forester | 2.5L | H4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2014 | Subaru | Forester | 2.5L | H4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2014 | Subaru | Forester | 2.0L | H4 | 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.