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CSF 3872 Radiator
Reliable Radiator Replacement for Kia Optima
The CSF radiator part number 3872 is designed specifically for Kia Optima models, providing efficient engine cooling with durable construction. This radiator features a cross flow design and OEM-style plastic tanks paired with an aluminum core to ensure consistent performance.
- Core thickness: 7/8 inch for effective heat dissipation
- Core dimensions: 18 5/16 inches width and length
- Aluminum core material for lightweight durability
- Plastic tank construction with quick-connect outlets
- Inlet and outlet diameters: 1 3/8 inches positioned left and right respectively
- Single-row radiator core for optimized cooling flow
- Includes a high-efficiency plate type oil cooler measuring 14 9/16 inches
Detailed Radiator Specifications and Design
The CSF 3872 radiator is engineered with a 7/8 inch thick aluminum core that measures 18 5/16 inches in both width and length, providing a balanced surface area for heat exchange. The plastic tanks are designed in an OEM style, ensuring compatibility and ease of installation on Kia Optima vehicles. The cross flow configuration allows coolant to move horizontally through the core, improving thermal efficiency. Both the inlet and outlet have a diameter of 1 3/8 inches, positioned on the left and right sides respectively, facilitating proper coolant circulation. Additionally, the radiator includes a 14 9/16 inch high-efficiency plate type oil cooler, enhancing engine cooling performance under demanding conditions.
Applications and Common Issues Addressed
- Replacement for leaking or cracked radiator tanks
- Solves overheating problems due to clogged or damaged cores
- Restores proper coolant flow in Kia Optima cooling systems
- Addresses reduced cooling efficiency from corrosion or wear
- Supports engine temperature regulation during high load or hot weather
Installation Notes and Tips
When installing the CSF radiator 3872 on a Kia Optima, ensure the inlet and outlet connections align with the vehicle’s coolant hoses for a secure fit. The OEM-style plastic tanks and aluminum core are designed for direct replacement, but verify hose diameters and lengths before installation. Since the radiator does not include a cap, reuse the existing cap or source a compatible replacement. Properly bleed the cooling system after installation to prevent air pockets and ensure optimal performance.
Quality Assurance and Warranty Information
CSF radiators are manufactured to meet OEM specifications, using corrosion-resistant aluminum cores and durable plastic tanks. This radiator is free from hazardous materials and weighs approximately 9 pounds, ensuring ease of handling. While specific warranty details are not provided, CSF products typically adhere to industry standards for quality and reliability.
| Brand | CSF |
| Part Number | 3872 |
| Core Thickness | 7/8 |
| Core Width | 18 5/16 |
| Core Material | Aluminum |
| Tank Material | Plastic |
| Core Length | 18 5/16 |
| Inlet Diameter | 1 3/8 left |
| Outlet Diameter | 1 3/8 right |
| Down Flow Or Cross Flow Type | Cross flow |
| Radiator Core Row Quantity | 1 |
| Cap Included | No |
| Box Height (in) | 6 5/8 |
| Box Length (in) | 26 1/8 |
| Box Weight (lbs) | 9 |
| Box Width (in) | 23 3/4 |
| Hazardous Material | No |
| Inlet Length (in) | 19 |
| Inlet Width (in) | 1 9/16 |
| Oil Cooler (in) | 14 9/16 (high-efficiency plate type) |
| Outlet Length (in) | 19 |
| Outlet Width (in) | 1 9/16 |
| Tech Note | O.e.m. style plastic tanks & aluminum core with quick-connect out |
This part fits 5 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2020 | Kia | Optima | 2.0L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2019 | Kia | Optima | 2.0L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2018 | Kia | Optima | 2.0L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2017 | Kia | Optima | 2.0L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2016 | Kia | Optima | 2.0L | L4 | N/A | OE style design ensures optimal fitment and performance. |
* 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.