Description

25310-D4100 Radiator Compatibility

25310-D4100 Radiator Kia Optima (JF) & K5 Sedan Series (2016–2020)

The 25310-D4100 RADIATOR is specifically engineered for the Fourth Generation Kia Optima. Featuring a reinforced aluminum core designed to handle the thermal demands of 2.0L and 2.4L powertrains equipped with Automatic Transmissions. Ideal for Optima and K5. Explore our cooling system catalog for your 25310-D4100 replacement.

Kia Optima (JF Series)

  • Model Years: 2016–2020
  • Engines: 2.0L / 2.4L 4-Cylinder
  • Transmission: Automatic (AT)

Kia K5 & Global Variants

  • Model Years: 2016–2019
  • Testing: 100% Pressure & Leak Verified
  • Finish: Corrosion-Resistant Coating

Part Number Reference: 25310-D4100 (Interchangeable: 25310-D4150)

Note: Optima JF automatic transmission configurations include an integrated oil cooler circuit. Verify your VIN to ensure exact hose diameters and transmission line clips match your specific trim level.


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Questions and Answers

Why is a high-performance radiator important for the 2.0L and 2.4L engines in the Kia Optima JF?
Mid-size sedans frequently encounter sustained highway speeds and heavy commuter traffic loads. An optimized aluminum core rapidly transfers heat to protect the engine block and cylinder head from overheating.
Does part number 25310-D4100 support automatic transmission fluid cooling?
Yes. This unit is built specifically for automatic transmission variants, featuring an internal transmission oil cooler integrated directly into the side tank assembly to maintain optimal fluid viscosity.
Why should I confirm my chassis number (VIN) prior to ordering part number 25310-D4100?
Trim levels, regional specifications (such as North American vs. GCC specs), and minor mid-cycle styling updates can introduce differences in mounting tabs and quick-connect fittings. Providing your VIN ensures a precise fit.

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