CSF 3874 Radiator

CSF 3874 Radiator for Kia Sportage

The CSF 3874 is an OE-style radiator built with an aluminum core and plastic tanks for direct replacement service on select Kia Sportage applications. It features a cross-flow design, single-row core construction, and integrated high-efficiency round-type oil cooler to support factory-style cooling performance.

Key Features

• OE-style plastic tank and aluminum core construction
• Cross-flow radiator design
• Single-row core with 1 1/4 in. core thickness
• Inlet: 1 3/8 in. right side; outlet: 1 3/8 in. left side
• Built-in 14 9/16 in. high-efficiency round-type oil cooler
• Compatible With 2017-2021 Kia Sportage and 2022 Kia Sportage with upgraded heavy-duty core
• CSF 3874 radiator for Kia Sportage cooling system service

Detailed Description

CSF Part Number 3874 is engineered as a direct-fit radiator for the Kia Sportage, covering 2017-2021 models and the 2022 Kia Sportage with the upgraded heavy-duty core note. The radiator uses an aluminum core with plastic tanks in an OEM-style layout, along with a cross-flow configuration and a single-row core to match the original cooling system architecture. Core dimensions measure 19 1/8 in. long, 18 5/16 in. wide, and 1 1/4 in. thick, with 19 in. inlet and outlet lengths and 1 3/4 in. inlet and outlet widths. This part cross-references Dorman - HELP 13607 for the same application.

Common Cooling Issues Addressed

• Leaking radiator tanks or core seams
• Restricted coolant flow from a worn or damaged radiator
• Cooling system overheating caused by reduced heat transfer
• Oil cooler service needs tied to the radiator assembly
• Replacement after corrosion, impact damage, or age-related failure

Installation Notes and Tips

Verify inlet and outlet orientation before installation: the inlet is on the right and the outlet is on the left. Confirm vehicle fitment against the 2017-2021 Kia Sportage and the 2022 Kia Sportage heavy-duty core application before removal of the original unit. Transfer any required cooling system components from the OE radiator as needed, and inspect hoses, clamps, and coolant condition during service. CSF 3874 is a radiator replacement for Kia Sportage cooling system repair and maintenance.

Quality Assurance

CSF manufactures this radiator as an OE-style replacement with aluminum core and plastic tank construction to match factory-style fitment and cooling system layout. Part number 3874 is built for direct replacement use in the listed Kia Sportage applications.