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CSF 3871 Radiator
Overview of CSF Radiator Part Number 3871
The CSF radiator 3871 is engineered for reliable cooling performance in Hyundai and Kia vehicles. Designed specifically for models like the Hyundai Elantra, Elantra GT, and Kia Forte, this radiator features a durable aluminum core and plastic tanks to ensure efficient heat dissipation and long-lasting operation.
- Core thickness: 5/8 inch
- Core width: 16 inches
- Core length: 24 1/16 inches
- Aluminum core material with plastic tanks
- Cross flow design for optimized coolant flow
- Inlet and outlet diameter: 1 5/16 inches (left inlet, right outlet)
- Single-row radiator core
- Includes a high-efficiency plate type oil cooler measuring 10 13/16 inches
Detailed Product Description
This CSF radiator (part number 3871) is built with an aluminum core that measures 5/8 inch thick, 16 inches wide, and 24 1/16 inches long, providing a robust surface area for effective heat exchange. The plastic tanks are designed in an OEM style to match original equipment specifications, ensuring proper fit and function. The cross flow configuration enhances coolant circulation, improving engine temperature regulation under various driving conditions. Both the inlet and outlet have a diameter of 1 5/16 inches, positioned on the left and right sides respectively, facilitating straightforward hose connections. Additionally, the integrated oil cooler is a high-efficiency plate type, measuring 10 13/16 inches, which helps maintain optimal oil temperatures for engine protection.
Compatible Vehicles and Applications
- Hyundai Elantra
- Hyundai Elantra GT
- Kia Forte
This radiator is designed to replace original equipment radiators in these specific models, addressing common cooling system issues such as overheating, coolant leaks, and reduced cooling efficiency.
Common Issues Addressed by This Radiator
- Engine overheating due to clogged or damaged radiator cores
- Coolant leaks from cracked or worn plastic tanks
- Reduced cooling performance from corrosion or buildup
- Oil temperature regulation problems addressed by the integrated oil cooler
- Incompatibility or poor fit of aftermarket radiators causing installation issues
Installation Notes and Tips
When installing the CSF radiator 3871, ensure all hoses match the 1 5/16 inch inlet and outlet diameters for proper sealing. The cross flow design requires correct orientation to maintain coolant flow direction. Verify that the radiator core dimensions (24 1/16 inches length, 16 inches width, and 5/8 inch thickness) fit within the vehicle’s radiator support. 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 avoid air pockets and ensure optimal performance.
Quality Assurance and Warranty
CSF radiators are manufactured to meet OEM standards, using high-quality aluminum cores and plastic tanks for durability and corrosion resistance. This radiator is free of hazardous materials and designed for long service life. While specific warranty details are not provided here, CSF products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Consult the product documentation or manufacturer for exact warranty terms.
| Brand | CSF |
| Part Number | 3871 |
| Core Thickness | 5/8 |
| Core Width | 16 |
| Core Material | Aluminum |
| Tank Material | Plastic |
| Core Length | 24 1/16 |
| Inlet Diameter | 1 5/16 left |
| Outlet Diameter | 1 5/16 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) | 33 5/8 |
| Box Weight (lbs) | 9 |
| Box Width (in) | 20 3/16 |
| Hazardous Material | No |
| Inlet Length (in) | 16 5/8 |
| Inlet Width (in) | 1 3/8 |
| Oil Cooler (in) | 10 13/16 (high-efficiency plate type) |
| Outlet Length (in) | 16 5/8 |
| Outlet Width (in) | 1 3/8 |
| Tech Note | O.e.m. style plastic tank & aluminum core. |
This part fits 13 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2024 | Kia | Forte | 2.0L | L4 | N/A | Upgraded Heavy Duty Core. 41% Thicker 15.5mm vs OEM 11mm |
| 2023 | Kia | Forte | 2.0L | L4 | N/A | Upgraded Heavy Duty Core. 41% Thicker 15.5mm vs OEM 11mm |
| 2022 | Kia | Forte | 2.0L | L4 | N/A | Upgraded Heavy Duty Core. 41% Thicker 15.5mm vs OEM 11mm |
| 2021 | Kia | Forte | 2.0L | L4 | N/A | Upgraded Heavy Duty Core. 41% Thicker 15.5mm vs OEM 11mm |
| 2020 | Hyundai | Elantra | 2.0L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2020 | Hyundai | Elantra GT | 2.0L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2020 | Kia | Forte | 2.0L | L4 | N/A | Upgraded Heavy Duty Core. 41% Thicker 15.5mm vs OEM 11mm |
| 2019 | Hyundai | Elantra | 2.0L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2019 | Hyundai | Elantra GT | 2.0L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2019 | Kia | Forte | 2.0L | L4 | N/A | Upgraded Heavy Duty Core. 41% Thicker 15.5mm vs OEM 11mm |
| 2018 | Hyundai | Elantra | 2.0L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2018 | Hyundai | Elantra GT | 2.0L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2017 | Hyundai | Elantra | 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.