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CSF 3871 Radiator
| Brand | CSF 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. |
| Fits | Hyundai and Kia · 13 vehicles |
OEM-style design. Plastic tanks and an aluminum core match the original construction.
Cross-flow radiator. Promotes efficient coolant flow through a single-row core.
Integrated oil cooler. High-efficiency plate-type cooler adds extra thermal management.
Cross-references Dorman - HELP 13609, Spectra Premium CU13609 and 25310F2000 for the same application. See all 6.
OE-Style Cooling Replacement for Hyundai and Kia
CSF 3871 is an OE-style radiator built with an aluminum core and plastic tanks for direct-fit cooling system service. It is engineered for select Hyundai Elantra, Elantra GT, and Kia Forte applications, including the 2019-2024 Kia Forte with an upgraded heavy-duty core that is 41% thicker than the OEM 11mm design.
Key Features
- Aluminum core with plastic tank construction
- Cross-flow radiator design with a single-row core
- Core dimensions: 24 1/16 in. length, 16 in. width, 5/8 in. thickness
- Left inlet and right outlet configuration
- Integrated high-efficiency plate-type oil cooler, 10 13/16 in.
- OE-style fitment for factory-style cooling system service
- CSF 3871 radiator for Hyundai Elantra, Elantra GT, and Kia Forte applications
Detailed Description
Built to match OEM-style packaging and cooling layout, the CSF 3871 radiator uses an aluminum core with plastic tanks to support reliable heat transfer and factory-style installation. The cross-flow configuration, single-row core, and left-inlet/right-outlet layout align with the original cooling system design on covered vehicles. This part cross-references Spectra Premium CU13609 and Dorman HELP 13609 for the same application. For shoppers comparing CSF 3871 against OE replacement options, it is a direct-fit radiator solution for 2017-2020 Hyundai Elantra, 2018-2020 Hyundai Elantra GT, and 2019-2024 Kia Forte models.
What This Radiator Helps Address
- Overheating caused by a restricted or aging radiator core
- Coolant leaks from cracked or deteriorated plastic tanks
- Reduced cooling efficiency from a damaged or corroded radiator
- Transmission or engine temperature concerns tied to radiator performance
- Fitment issues when replacing an OE-style radiator assembly
Installation Notes and Tips
Verify inlet and outlet orientation, core dimensions, and oil cooler routing before installation. This radiator does not include a cap. Confirm the vehicle’s cooling system is fully drained, flushed if needed, and inspected for hose, clamp, and thermostat condition before final assembly. The CSF 3871 is a fitment-specific replacement, so matching the vehicle year, make, and model is important for proper installation.
Quality Assurance
CSF manufactures OE-style cooling components with application-specific dimensions and materials. The 3871 radiator is built with an aluminum core and plastic tank design to follow the factory cooling layout for the listed Hyundai and Kia applications.
| 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. |
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