Description

25310-C1100 Radiator Compatibility

25310-C1100 Radiator Hyundai Sonata (LF) & Kia Optima (JF) 2.4L Series

The 25310-C1100 RADIATOR is engineered for the Sonata LF and Optima JF platforms. This high-capacity unit meets the thermal demands of the 2.4L Theta II engine, featuring reinforced tanks and a high-density aluminum core for maximum heat dissipation. Explore our cooling system catalog for your 25310-C1100 replacement.

Hyundai Sonata (LF)

  • Model Years: 2015–2019
  • Engine: 2.4L Petrol (Non-Hybrid)
  • Quality: Reinforced Thermal-Plastic Tanks

Kia Optima (JF)

  • Model Years: 2016–2020
  • Engine: 2.4L & Select 2.0L Turbo
  • Standard: OE Mounting Bracket Match

Part Number Reference: 25310-C1100 (Interchangeable: 25310-C1150, 25310-D4000)

Note: Sonata and Optima platforms use different radiators for Hybrid vs. Non-Hybrid models and Turbocharged vs. Naturally Aspirated engines. Verify your VIN to guarantee hose diameters and transmission cooler ports match your drivetrain.


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Questions and Answers

Why do non-hybrid Sonata LF and Optima JF models require a specific radiator layout?
Naturally aspirated 2.4L Theta II engines have dedicated cooling plumbing paths and standard transmission fluid heat exchangers built into the side tanks. Using the correct part number ensures that factory fan shrouds and coolant hoses clip on securely without tension.
Can this radiator be interchanged between turbocharged and naturally aspirated models?
Typically no. Turbocharged variants (such as the 2.0T) often incorporate higher-capacity cooling requirements, different core thicknesses, or alternative auxiliary oil line fittings compared to standard 2.4L setups.
Why is confirming your chassis number (VIN) vital before purchasing a replacement radiator?
Hyundai and Kia frequently introduce mid-year regional updates or split manufacturing plants (e.g., US-built vs. Korean-built variants) that alter mounting bracket tabs and quick-connect hose angles. Your VIN provides the exact factory blueprint match.

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