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CSF 3645 Radiator
Overview of CSF 3645 Radiator for Acura TL
The CSF 3645 radiator is designed specifically for Acura TL 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: 7/8 inch
- Core Width: 30 3/8 inches
- Core Length: 16 3/4 inches
- Core Material: Aluminum
- Tank Material: Plastic
- Inlet Diameter: 1 5/16 inches (left side)
- Outlet Diameter: 1 1/4 inches (left side)
- Down flow radiator type
- Single core row design
- Oil cooler included: 14 3/4 inch high-efficiency plate type
About 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 factory specifications, ensuring compatibility and performance for vehicles like the Acura TL. The single-row core design supports effective cooling while maintaining a compact profile.
Detailed Product Description
The CSF part number 3645 radiator is constructed with a 7/8 inch thick aluminum core measuring 30 3/8 inches wide and 16 3/4 inches long. The plastic tanks are designed to withstand typical operating conditions while reducing overall weight. The radiator features a down flow design, which directs coolant from the top to the bottom, optimizing heat transfer. Inlet and outlet diameters are sized at 1 5/16 inches and 1 1/4 inches respectively, both positioned on the left side for direct fitment. Additionally, this radiator includes a high-efficiency plate-type oil cooler measuring 14 3/4 inches, enhancing engine cooling performance.
Common Applications and Issues Addressed
- Replacement for leaking or damaged radiators in Acura TL vehicles
- Resolves overheating caused by inefficient or clogged radiator cores
- Addresses coolant flow restrictions due to worn or corroded tanks
- Improves engine temperature regulation with integrated oil cooler
- Suitable for restoring OEM cooling system performance
Installation Notes and Tips
Ensure the radiator is compatible with your specific Acura TL model year before installation. The inlet and outlet connections are located on the left side, so verify hose routing accordingly. Since the radiator does not include a cap, reuse the existing cap or purchase a compatible CSF cap number 4514 separately. Properly bleed the cooling system after installation to avoid air pockets and ensure optimal coolant circulation.
Quality Assurance and Warranty
CSF radiators are manufactured to meet OEM standards, using high-quality aluminum cores and durable plastic tanks. This radiator is free of hazardous materials and designed for long-term reliability. While specific warranty details are not provided here, CSF products typically come with manufacturer-backed warranties to cover defects in materials and workmanship.
| Brand | CSF |
| Part Number | 3645 |
| Position | 1 Row Plastic Tank Aluminum Core |
| Core Thickness | 7/8 |
| Core Width | 30 3/8 |
| Core Material | Aluminum |
| Tank Material | Plastic |
| Core Length | 16 3/4 |
| Inlet Diameter | 1 5/16 left |
| Outlet Diameter | 1 1/4 left |
| Down Flow Or Cross Flow Type | Down flow |
| Radiator Core Row Quantity | 1 |
| Cap Included | No |
| Box Height (in) | 5 4/16 |
| Box Length (in) | 33 |
| Box Weight (lbs) | 12 |
| Box Width (in) | 22 9/16 |
| Csf Cap Number | 4514 |
| Hazardous Material | No |
| Inlet Length (in) | 31 |
| Inlet Width (in) | 1 5/8 |
| Oil Cooler (in) | 14 3/4 (high-efficiency plate type) |
| Outlet Length (in) | 31 |
| Outlet Width (in) | 1 5/8 |
| Tech Note | O.e.m. style plastic tanks & aluminum core. |
This part fits 12 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2014 | Acura | TL | 3.5L | V6 | N/A | OE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 2014 | Acura | TL | 3.7L | V6 | N/A | OE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 2013 | Acura | TL | 3.5L | V6 | N/A | OE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 2013 | Acura | TL | 3.7L | V6 | N/A | OE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 2012 | Acura | TL | 3.5L | V6 | N/A | OE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 2012 | Acura | TL | 3.7L | V6 | N/A | OE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 2011 | Acura | TL | 3.5L | V6 | N/A | OE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 2011 | Acura | TL | 3.7L | V6 | N/A | OE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 2010 | Acura | TL | 3.7L | V6 | N/A | OE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 2010 | Acura | TL | 3.5L | V6 | N/A | OE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 2009 | Acura | TL | 3.5L | V6 | N/A | OE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 2009 | Acura | TL | 3.7L | V6 | N/A | OE Style Design; Use Micro, 16 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.